Add ValueStringBuilder to Common from coreclr (unchanged)
Add ValueStringBuilder to Common from coreclr (unchanged)

axelheer/corefx,ericstj/corefx,ericstj/corefx,zhenlan/corefx,Ermiar/corefx,mmitche/corefx,ViktorHofer/corefx,zhenlan/corefx,mmitche/corefx,ravimeda/corefx,zhenlan/corefx,shimingsg/corefx,mmitche/corefx,ravimeda/corefx,ravimeda/corefx,ViktorHofer/corefx,mmitche/corefx,ptoonen/corefx,ericstj/corefx,ericstj/corefx,ptoonen/corefx,zhenlan/corefx,shimingsg/corefx,wtgodbe/corefx,zhenlan/corefx,ravimeda/corefx,Ermiar/corefx,zhenlan/corefx,wtgodbe/corefx,Ermiar/corefx,shimingsg/corefx,axelheer/corefx,Ermiar/corefx,shimingsg/corefx,Jiayili1/corefx,wtgodbe/corefx,shimingsg/corefx,zhenlan/corefx,wtgodbe/corefx,axelheer/corefx,mmitche/corefx,ViktorHofer/corefx,axelheer/corefx,ptoonen/corefx,ericstj/corefx,Ermiar/corefx,ptoonen/corefx,BrennanConroy/corefx,wtgodbe/corefx,ravimeda/corefx,ericstj/corefx,Jiayili1/corefx,shimingsg/corefx,ravimeda/corefx,ViktorHofer/corefx,ViktorHofer/corefx,ptoonen/corefx,Jiayili1/corefx,ViktorHofer/corefx,BrennanConroy/corefx,shimingsg/corefx,Jiayili1/corefx,axelheer/corefx,wtgodbe/corefx,ptoonen/corefx,ericstj/corefx,Ermiar/corefx,ptoonen/corefx,ravimeda/corefx,Jiayili1/corefx,Jiayili1/corefx,Jiayili1/corefx,BrennanConroy/corefx,axelheer/corefx,Ermiar/corefx,mmitche/corefx,ViktorHofer/corefx,mmitche/corefx,wtgodbe/corefx