build: report the ICU path used for the target
build: report the ICU path used for the target

Report the ICU I18N and UC include paths and the library path.  This
makes it obvious when the variable is not defined and more importantly
makes it easier to see what the paths are being used particularly when
cross-compiling for multiple architectures.

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