Make build.FullCLR.ps1 build RELEASE by default
Make build.FullCLR.ps1 build RELEASE by default

Since we start include CRT runtime inside powershell.exe,
the size of executable jumped from 32kb to 1Mb in DEBUG.
Release produces about 20kb, so we keep size managable.

daxian-dbw/PowerShell,PaulHigin/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell,bmanikm/PowerShell,bmanikm/PowerShell,jsoref/PowerShell,bingbing8/PowerShell,jsoref/PowerShell,JamesWTruher/PowerShell-1,bingbing8/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell,bmanikm/PowerShell,daxian-dbw/PowerShell,kmosher/PowerShell,JamesWTruher/PowerShell-1,bingbing8/PowerShell,JamesWTruher/PowerShell-1,jsoref/PowerShell,daxian-dbw/PowerShell,kmosher/PowerShell,KarolKaczmarek/PowerShell,KarolKaczmarek/PowerShell,jsoref/PowerShell,KarolKaczmarek/PowerShell,PaulHigin/PowerShell,kmosher/PowerShell,KarolKaczmarek/PowerShell,bingbing8/PowerShell,KarolKaczmarek/PowerShell,TravisEz13/PowerShell,bingbing8/PowerShell,bmanikm/PowerShell,TravisEz13/PowerShell,kmosher/PowerShell,jsoref/PowerShell,bmanikm/PowerShell,JamesWTruher/PowerShell-1,daxian-dbw/PowerShell,kmosher/PowerShell