[docs] Suppress "not included in any toctree" warning in CMake build
[docs] Suppress "not included in any toctree" warning in CMake build

We have lots of documents that are intentionally not in any toctree;
we were just getting a massive pile of useless warnings about them.
Had there been a valid warning in there we'd have missed it anyhow.

Swift SVN r10607

modocache/swift,khizkhiz/swift,therealbnut/swift,gmilos/swift,amraboelela/swift,milseman/swift,rudkx/swift,harlanhaskins/swift,therealbnut/swift,apple/swift,airspeedswift/swift,benlangmuir/swift,adrfer/swift,LeoShimonaka/swift,MukeshKumarS/Swift,kperryua/swift,LeoShimonaka/swift,allevato/swift,shajrawi/swift,swiftix/swift.old,benlangmuir/swift,glessard/swift,codestergit/swift,SwiftAndroid/swift,jckarter/swift,airspeedswift/swift,ben-ng/swift,lorentey/swift,tjw/swift,Ivacker/swift,mightydeveloper/swift,hughbe/swift,return/swift,tkremenek/swift,parkera/swift,natecook1000/swift,allevato/swift,alblue/swift,ben-ng/swift,IngmarStein/swift,djwbrown/swift,cbrentharris/swift,KrishMunot/swift,calebd/swift,kentya6/swift,alblue/swift,practicalswift/swift,practicalswift/swift,devincoughlin/swift,jckarter/swift,johnno1962d/swift,kusl/swift,huonw/swift,natecook1000/swift,uasys/swift,nathawes/swift,johnno1962d/swift,arvedviehweger/swift,milseman/swift,hooman/swift,ken0nek/swift,benlangmuir/swift,rudkx/swift,uasys/swift,khizkhiz/swift,KrishMunot/swift,slavapestov/swift,tinysun212/swift-windows,allevato/swift,aschwaighofer/swift,jopamer/swift,lorentey/swift,deyton/swift,russbishop/swift,JaSpa/swift,allevato/swift,airspeedswift/swift,codestergit/swift,tkremenek/swift,cbrentharris/swift,bitjammer/swift,atrick/swift,zisko/swift,felix91gr/swift,dreamsxin/swift,hughbe/swift,rudkx/swift,modocache/swift,danielmartin/swift,jmgc/swift,shajrawi/swift,shahmishal/swift,codestergit/swift,jckarter/swift,rudkx/swift,apple/swift,alblue/swift,milseman/swift,uasys/swift,khizkhiz/swift,ahoppen/swift,milseman/swift,karwa/swift,dduan/swift,russbishop/swift,modocache/swift,slavapestov/swift,austinzheng/swift,emilstahl/swift,milseman/swift,mightydeveloper/swift,xwu/swift,tkremenek/swift,LeoShimonaka/swift,jmgc/swift,sdulal/swift,shajrawi/swift,brentdax/swift,sschiau/swift,JaSpa/swift,Ivacker/swift,frootloops/swift,practicalswift/swift,mightydeveloper/swift,jopamer/swift,mightydeveloper/swift,nathawes/swift,kusl/swift,shajrawi/swift,shahmishal/swift,hooman/swift,OscarSwanros/swift,return/swift,roambotics/swift,mightydeveloper/swift,kstaring/swift,johnno1962d/swift,JaSpa/swift,devincoughlin/swift,aschwaighofer/swift,calebd/swift,gregomni/swift,OscarSwanros/swift,Jnosh/swift,Ivacker/swift,therealbnut/swift,KrishMunot/swift,khizkhiz/swift,slavapestov/swift,natecook1000/swift,apple/swift,felix91gr/swift,sdulal/swift,apple/swift,huonw/swift,sdulal/swift,lorentey/swift,kentya6/swift,djwbrown/swift,khizkhiz/swift,uasys/swift,stephentyrone/swift,russbishop/swift,kentya6/swift,kusl/swift,zisko/swift,mightydeveloper/swift,tinysun212/swift-windows,airspeedswift/swift,swiftix/swift,gottesmm/swift,codestergit/swift,airspeedswift/swift,swiftix/swift,swiftix/swift,gribozavr/swift,frootloops/swift,CodaFi/swift,dduan/swift,shahmishal/swift,bitjammer/swift,roambotics/swift,codestergit/swift,devincoughlin/swift,manavgabhawala/swift,hooman/swift,adrfer/swift,zisko/swift,frootloops/swift,sdulal/swift,calebd/swift,kentya6/swift,lorentey/swift,therealbnut/swift,gribozavr/swift,aschwaighofer/swift,IngmarStein/swift,nathawes/swift,parkera/swift,russbishop/swift,austinzheng/swift,natecook1000/swift,manavgabhawala/swift,LeoShimonaka/swift,hooman/swift,johnno1962d/swift,kperryua/swift,xwu/swift,MukeshKumarS/Swift,ahoppen/swift,tkremenek/swift,shahmishal/swift,atrick/swift,Ivacker/swift,JaSpa/swift,sschiau/swift,devincoughlin/swift,russbishop/swift,milseman/swift,sdulal/swift,austinzheng/swift,swiftix/swift,Jnosh/swift,arvedviehweger/swift,parkera/swift,gribozavr/swift,arvedviehweger/swift,shahmishal/swift,austinzheng/swift,djwbrown/swift,harlanhaskins/swift,calebd/swift,IngmarStein/swift,calebd/swift,emilstahl/swift,OscarSwanros/swift,natecook1000/swift,xedin/swift,devincoughlin/swift,tkremenek/swift,parkera/swift,tardieu/swift,austinzheng/swift,atrick/swift,devincoughlin/swift,practicalswift/swift,MukeshKumarS/Swift,jtbandes/swift,felix91gr/swift,jckarter/swift,jmgc/swift,adrfer/swift,tjw/swift,roambotics/swift,sschiau/swift,aschwaighofer/swift,karwa/swift,return/swift,johnno1962d/swift,kentya6/swift,tardieu/swift,practicalswift/swift,gottesmm/swift,arvedviehweger/swift,allevato/swift,ben-ng/swift,jmgc/swift,brentdax/swift,xwu/swift,SwiftAndroid/swift,tardieu/swift,shajrawi/swift,arvedviehweger/swift,danielmartin/swift,kstaring/swift,KrishMunot/swift,jtbandes/swift,sdulal/swift,jmgc/swift,parkera/swift,stephentyrone/swift,alblue/swift,slavapestov/swift,JaSpa/swift,lorentey/swift,Ivacker/swift,ben-ng/swift,stephentyrone/swift,sdulal/swift,lorentey/swift,calebd/swift,cbrentharris/swift,OscarSwanros/swift,practicalswift/swift,frootloops/swift,jopamer/swift,tjw/swift,harlanhaskins/swift,tkremenek/swift,xedin/swift,OscarSwanros/swift,JGiola/swift,swiftix/swift.old,nathawes/swift,russbishop/swift,ken0nek/swift,lorentey/swift,LeoShimonaka/swift,zisko/swift,Jnosh/swift,hughbe/swift,uasys/swift,uasys/swift,kusl/swift,gmilos/swift,tinysun212/swift-windows,manavgabhawala/swift,therealbnut/swift,kusl/swift,gottesmm/swift,slavapestov/swift,xedin/swift,mightydeveloper/swift,tjw/swift,tinysun212/swift-windows,ben-ng/swift,adrfer/swift,tardieu/swift,therealbnut/swift,sschiau/swift,parkera/swift,shajrawi/swift,tinysun212/swift-windows,hooman/swift,aschwaighofer/swift,tardieu/swift,sschiau/swift,nathawes/swift,allevato/swift,shajrawi/swift,mightydeveloper/swift,Jnosh/swift,SwiftAndroid/swift,JaSpa/swift,zisko/swift,cbrentharris/swift,Ivacker/swift,gottesmm/swift,stephentyrone/swift,natecook1000/swift,kperryua/swift,IngmarStein/swift,cbrentharris/swift,harlanhaskins/swift,glessard/swift,jtbandes/swift,jopamer/swift,Ivacker/swift,aschwaighofer/swift,shahmishal/swift,JGiola/swift,karwa/swift,ken0nek/swift,jtbandes/swift,tardieu/swift,xedin/swift,kperryua/swift,return/swift,danielmartin/swift,felix91gr/swift,Jnosh/swift,LeoShimonaka/swift,deyton/swift,kperryua/swift,shajrawi/swift,felix91gr/swift,ben-ng/swift,ahoppen/swift,karwa/swift,atrick/swift,djwbrown/swift,kusl/swift,xedin/swift,natecook1000/swift,stephentyrone/swift,return/swift,xedin/swift,stephentyrone/swift,MukeshKumarS/Swift,shahmishal/swift,atrick/swift,gribozavr/swift,kusl/swift,kentya6/swift,adrfer/swift,return/swift,zisko/swift,brentdax/swift,CodaFi/swift,bitjammer/swift,kstaring/swift,swiftix/swift.old,gmilos/swift,cbrentharris/swift,swiftix/swift,atrick/swift,KrishMunot/swift,glessard/swift,jopamer/swift,brentdax/swift,danielmartin/swift,emilstahl/swift,nathawes/swift,SwiftAndroid/swift,manavgabhawala/swift,apple/swift,sschiau/swift,swiftix/swift.old,OscarSwanros/swift,Jnosh/swift,CodaFi/swift,Jnosh/swift,swiftix/swift.old,airspeedswift/swift,ahoppen/swift,shahmishal/swift,devincoughlin/swift,roambotics/swift,SwiftAndroid/swift,gmilos/swift,therealbnut/swift,karwa/swift,glessard/swift,hughbe/swift,swiftix/swift.old,alblue/swift,manavgabhawala/swift,gmilos/swift,tardieu/swift,harlanhaskins/swift,amraboelela/swift,emilstahl/swift,jmgc/swift,djwbrown/swift,djwbrown/swift,deyton/swift,danielmartin/swift,amraboelela/swift,codestergit/swift,kstaring/swift,gregomni/swift,tjw/swift,kperryua/swift,KrishMunot/swift,ahoppen/swift,slavapestov/swift,roambotics/swift,jtbandes/swift,arvedviehweger/swift,felix91gr/swift,rudkx/swift,devincoughlin/swift,swiftix/swift.old,danielmartin/swift,deyton/swift,karwa/swift,emilstahl/swift,alblue/swift,benlangmuir/swift,brentdax/swift,ken0nek/swift,kusl/swift,dduan/swift,frootloops/swift,huonw/swift,hughbe/swift,bitjammer/swift,practicalswift/swift,sdulal/swift,jopamer/swift,kentya6/swift,tinysun212/swift-windows,gmilos/swift,IngmarStein/swift,zisko/swift,CodaFi/swift,swiftix/swift,glessard/swift,harlanhaskins/swift,amraboelela/swift,lorentey/swift,codestergit/swift,huonw/swift,xedin/swift,kperryua/swift,KrishMunot/swift,russbishop/swift,deyton/swift,xwu/swift,Ivacker/swift,xwu/swift,huonw/swift,uasys/swift,arvedviehweger/swift,bitjammer/swift,sschiau/swift,deyton/swift,deyton/swift,gregomni/swift,kstaring/swift,dduan/swift,emilstahl/swift,brentdax/swift,dduan/swift,nathawes/swift,huonw/swift,gregomni/swift,austinzheng/swift,MukeshKumarS/Swift,swiftix/swift.old,tkremenek/swift,calebd/swift,alblue/swift,ben-ng/swift,SwiftAndroid/swift,emilstahl/swift,IngmarStein/swift,roambotics/swift,gregomni/swift,ken0nek/swift,kstaring/swift,gribozavr/swift,JGiola/swift,parkera/swift,adrfer/swift,djwbrown/swift,xwu/swift,gottesmm/swift,harlanhaskins/swift,johnno1962d/swift,karwa/swift,jtbandes/swift,emilstahl/swift,LeoShimonaka/swift,hughbe/swift,dduan/swift,amraboelela/swift,dreamsxin/swift,gottesmm/swift,modocache/swift,stephentyrone/swift,MukeshKumarS/Swift,gregomni/swift,bitjammer/swift,allevato/swift,MukeshKumarS/Swift,jckarter/swift,apple/swift,xedin/swift,danielmartin/swift,aschwaighofer/swift,dduan/swift,amraboelela/swift,hooman/swift,practicalswift/swift,sschiau/swift,johnno1962d/swift,tinysun212/swift-windows,modocache/swift,slavapestov/swift,glessard/swift,kstaring/swift,amraboelela/swift,benlangmuir/swift,SwiftAndroid/swift,gribozavr/swift,JGiola/swift,karwa/swift,cbrentharris/swift,manavgabhawala/swift,austinzheng/swift,IngmarStein/swift,gribozavr/swift,adrfer/swift,modocache/swift,gribozavr/swift,huonw/swift,bitjammer/swift,jopamer/swift,kentya6/swift,tjw/swift,parkera/swift,felix91gr/swift,CodaFi/swift,jtbandes/swift,LeoShimonaka/swift,CodaFi/swift,rudkx/swift,airspeedswift/swift,xwu/swift,khizkhiz/swift,modocache/swift,jmgc/swift,gottesmm/swift,jckarter/swift,frootloops/swift,JaSpa/swift,brentdax/swift,frootloops/swift,ahoppen/swift,CodaFi/swift,jckarter/swift,swiftix/swift,gmilos/swift,milseman/swift,khizkhiz/swift,hughbe/swift,OscarSwanros/swift,return/swift,JGiola/swift,benlangmuir/swift,ken0nek/swift,cbrentharris/swift,manavgabhawala/swift,tjw/swift,hooman/swift,JGiola/swift,ken0nek/swift