Changed the option for bitness to be writable and 64-bit by default for 64-bit builds.
Changed the option for bitness to be writable and 64-bit by default for 64-bit builds.

Signed-off-by: Dimitar Dobrev <ca751a5c976abad79158718440750fc638d19ebc@yahoo.com>

SonyaSa/CppSharp,txdv/CppSharp,ddobrev/CppSharp,xistoso/CppSharp,mono/CppSharp,ktopouzi/CppSharp,inordertotest/CppSharp,Samana/CppSharp,zillemarco/CppSharp,u255436/CppSharp,ddobrev/CppSharp,mohtamohit/CppSharp,xistoso/CppSharp,u255436/CppSharp,u255436/CppSharp,mohtamohit/CppSharp,ktopouzi/CppSharp,txdv/CppSharp,genuinelucifer/CppSharp,KonajuGames/CppSharp,imazen/CppSharp,mydogisbox/CppSharp,genuinelucifer/CppSharp,KonajuGames/CppSharp,ddobrev/CppSharp,ktopouzi/CppSharp,zillemarco/CppSharp,mydogisbox/CppSharp,ktopouzi/CppSharp,Samana/CppSharp,nalkaro/CppSharp,u255436/CppSharp,mono/CppSharp,txdv/CppSharp,Samana/CppSharp,mohtamohit/CppSharp,xistoso/CppSharp,SonyaSa/CppSharp,KonajuGames/CppSharp,txdv/CppSharp,SonyaSa/CppSharp,ktopouzi/CppSharp,nalkaro/CppSharp,inordertotest/CppSharp,imazen/CppSharp,zillemarco/CppSharp,nalkaro/CppSharp,inordertotest/CppSharp,mydogisbox/CppSharp,KonajuGames/CppSharp,u255436/CppSharp,mydogisbox/CppSharp,genuinelucifer/CppSharp,Samana/CppSharp,mohtamohit/CppSharp,xistoso/CppSharp,nalkaro/CppSharp,mono/CppSharp,imazen/CppSharp,nalkaro/CppSharp,zillemarco/CppSharp,genuinelucifer/CppSharp,SonyaSa/CppSharp,zillemarco/CppSharp,KonajuGames/CppSharp,inordertotest/CppSharp,genuinelucifer/CppSharp,SonyaSa/CppSharp,xistoso/CppSharp,ddobrev/CppSharp,mono/CppSharp,mydogisbox/CppSharp,inordertotest/CppSharp,txdv/CppSharp,ddobrev/CppSharp,mohtamohit/CppSharp,imazen/CppSharp,Samana/CppSharp,mono/CppSharp,imazen/CppSharp,mono/CppSharp