Added first version of AppVeyor build script.
Added first version of AppVeyor build script.

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