build: disable static RTTI on Windows if possible
build: disable static RTTI on Windows if possible

Newer SDKs have the ability to disable the static RTTI usage as well as
the dynamic.  We had to enable the use of static RTTI previously for the
use of `std::function`.  Disable the static RTTI if possible.

stephentyrone/swift,apple/swift,parkera/swift,airspeedswift/swift,jckarter/swift,sschiau/swift,xwu/swift,hooman/swift,lorentey/swift,apple/swift,natecook1000/swift,JGiola/swift,hooman/swift,atrick/swift,harlanhaskins/swift,tjw/swift,benlangmuir/swift,roambotics/swift,hooman/swift,tkremenek/swift,jmgc/swift,parkera/swift,apple/swift,ahoppen/swift,lorentey/swift,parkera/swift,airspeedswift/swift,rudkx/swift,xwu/swift,alblue/swift,parkera/swift,xedin/swift,danielmartin/swift,practicalswift/swift,jmgc/swift,tkremenek/swift,airspeedswift/swift,glessard/swift,danielmartin/swift,jmgc/swift,jmgc/swift,JGiola/swift,jopamer/swift,benlangmuir/swift,brentdax/swift,benlangmuir/swift,sschiau/swift,tjw/swift,shahmishal/swift,stephentyrone/swift,sschiau/swift,shahmishal/swift,CodaFi/swift,ahoppen/swift,lorentey/swift,aschwaighofer/swift,brentdax/swift,devincoughlin/swift,jopamer/swift,nathawes/swift,austinzheng/swift,natecook1000/swift,roambotics/swift,karwa/swift,aschwaighofer/swift,shahmishal/swift,roambotics/swift,gribozavr/swift,danielmartin/swift,practicalswift/swift,tkremenek/swift,ahoppen/swift,CodaFi/swift,devincoughlin/swift,danielmartin/swift,devincoughlin/swift,alblue/swift,amraboelela/swift,brentdax/swift,aschwaighofer/swift,xedin/swift,atrick/swift,alblue/swift,shajrawi/swift,huonw/swift,shajrawi/swift,JGiola/swift,practicalswift/swift,jckarter/swift,amraboelela/swift,stephentyrone/swift,gregomni/swift,shahmishal/swift,austinzheng/swift,aschwaighofer/swift,jmgc/swift,jckarter/swift,tjw/swift,airspeedswift/swift,amraboelela/swift,sschiau/swift,stephentyrone/swift,stephentyrone/swift,benlangmuir/swift,jopamer/swift,xwu/swift,shahmishal/swift,austinzheng/swift,practicalswift/swift,huonw/swift,gribozavr/swift,hooman/swift,natecook1000/swift,xwu/swift,austinzheng/swift,apple/swift,rudkx/swift,CodaFi/swift,xedin/swift,practicalswift/swift,practicalswift/swift,lorentey/swift,gregomni/swift,karwa/swift,karwa/swift,gribozavr/swift,shajrawi/swift,roambotics/swift,harlanhaskins/swift,rudkx/swift,glessard/swift,tkremenek/swift,apple/swift,huonw/swift,rudkx/swift,danielmartin/swift,sschiau/swift,huonw/swift,nathawes/swift,glessard/swift,lorentey/swift,ahoppen/swift,nathawes/swift,gribozavr/swift,nathawes/swift,gribozavr/swift,glessard/swift,harlanhaskins/swift,alblue/swift,jckarter/swift,tjw/swift,karwa/swift,alblue/swift,xwu/swift,karwa/swift,huonw/swift,amraboelela/swift,allevato/swift,tkremenek/swift,lorentey/swift,jopamer/swift,karwa/swift,atrick/swift,practicalswift/swift,natecook1000/swift,aschwaighofer/swift,gregomni/swift,sschiau/swift,practicalswift/swift,brentdax/swift,austinzheng/swift,jmgc/swift,lorentey/swift,atrick/swift,shajrawi/swift,shahmishal/swift,huonw/swift,rudkx/swift,JGiola/swift,alblue/swift,hooman/swift,gregomni/swift,gribozavr/swift,benlangmuir/swift,atrick/swift,natecook1000/swift,nathawes/swift,airspeedswift/swift,ahoppen/swift,amraboelela/swift,amraboelela/swift,xedin/swift,tkremenek/swift,shajrawi/swift,benlangmuir/swift,JGiola/swift,xedin/swift,stephentyrone/swift,nathawes/swift,harlanhaskins/swift,hooman/swift,parkera/swift,parkera/swift,xwu/swift,CodaFi/swift,harlanhaskins/swift,alblue/swift,brentdax/swift,lorentey/swift,gribozavr/swift,natecook1000/swift,nathawes/swift,CodaFi/swift,xedin/swift,shahmishal/swift,stephentyrone/swift,allevato/swift,tjw/swift,atrick/swift,jopamer/swift,aschwaighofer/swift,shajrawi/swift,danielmartin/swift,CodaFi/swift,allevato/swift,roambotics/swift,harlanhaskins/swift,huonw/swift,devincoughlin/swift,ahoppen/swift,hooman/swift,jckarter/swift,shahmishal/swift,allevato/swift,allevato/swift,glessard/swift,devincoughlin/swift,brentdax/swift,roambotics/swift,karwa/swift,JGiola/swift,sschiau/swift,glessard/swift,jckarter/swift,parkera/swift,jopamer/swift,apple/swift,xedin/swift,natecook1000/swift,parkera/swift,tkremenek/swift,jckarter/swift,harlanhaskins/swift,jopamer/swift,xwu/swift,tjw/swift,gregomni/swift,brentdax/swift,devincoughlin/swift,gregomni/swift,devincoughlin/swift,danielmartin/swift,aschwaighofer/swift,airspeedswift/swift,sschiau/swift,xedin/swift,karwa/swift,amraboelela/swift,shajrawi/swift,airspeedswift/swift,CodaFi/swift,allevato/swift,allevato/swift,shajrawi/swift,devincoughlin/swift,gribozavr/swift,austinzheng/swift,rudkx/swift,tjw/swift,austinzheng/swift,jmgc/swift