[benchmark] Re-add support for anding multiple tags by splitting on ','
[benchmark] Re-add support for anding multiple tags by splitting on ','

As an example:

--tags=Array,cpubench

would select all tests that are both tagged as Array benchmarks and cpu
benchmarks.

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