[vim] support for more keywords
[vim] support for more keywords

Support for a newly introduced `associatedtype` as well as `final`,
`override` etc. `get`/`set`, nil`, `as` and `??` will get highlighted
too.

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