Add implementations for List<T>.Find, List<T>.Contains and Stack<T>.Clear
Add implementations for List<T>.Find, List<T>.Contains and Stack<T>.Clear

TukekeSoft/JSIL,antiufo/JSIL,FUSEEProjectTeam/JSIL,sq/JSIL,antiufo/JSIL,hach-que/JSIL,mispy/JSIL,hach-que/JSIL,hach-que/JSIL,sander-git/JSIL,antiufo/JSIL,mispy/JSIL,volkd/JSIL,dmirmilshteyn/JSIL,iskiselev/JSIL,Trattpingvin/JSIL,antiufo/JSIL,FUSEEProjectTeam/JSIL,Trattpingvin/JSIL,x335/JSIL,hach-que/JSIL,volkd/JSIL,sander-git/JSIL,acourtney2015/JSIL,sander-git/JSIL,FUSEEProjectTeam/JSIL,volkd/JSIL,TukekeSoft/JSIL,iskiselev/JSIL,x335/JSIL,volkd/JSIL,Trattpingvin/JSIL,TukekeSoft/JSIL,sq/JSIL,mispy/JSIL,sq/JSIL,FUSEEProjectTeam/JSIL,sq/JSIL,acourtney2015/JSIL,x335/JSIL,Trattpingvin/JSIL,acourtney2015/JSIL,x335/JSIL,iskiselev/JSIL,hach-que/JSIL,dmirmilshteyn/JSIL,mispy/JSIL,sq/JSIL,TukekeSoft/JSIL,dmirmilshteyn/JSIL,acourtney2015/JSIL,FUSEEProjectTeam/JSIL,sander-git/JSIL,iskiselev/JSIL,iskiselev/JSIL,dmirmilshteyn/JSIL,volkd/JSIL,acourtney2015/JSIL,sander-git/JSIL