Added building support from Windows command line. This feature allow build in parallel (all available core) and use hard links if possible. Also change configuration destiny (i. e. avx2). It really is much faster than Visual Studio GUI.

Usage: build.cmd "Release AVX".

build.cmd

@@ -0,0 +1,4 @@
+@echo off
+SET Configuration=%1
+call clean_msvc.cmd
+MSBuild.exe pcsx2_suite_2013.sln /m /p:BuildInParallel=true /p:CreateHardLinksForCopyLocalIfPossible=true /t:Clean,Rebuild /p:Configuration=%Configuration%