utils: adjust to support long paths on windows
utils: adjust to support long paths on windows

Windows restricts paths to 251 characters.  Using unicode paths will
allow us to go down the `_wfopen` path which permits the use of the NT
path to actually use long paths.

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