Adds batch file to build nuget packages.
diff --git a/Tools/nuget/build.bat b/Tools/nuget/build.bat
new file mode 100644
index 0000000..120b38c
--- /dev/null
+++ b/Tools/nuget/build.bat
@@ -0,0 +1,55 @@
+@echo off

+setlocal

+set D=%~dp0

+set PCBUILD=%D%..\..\PCBuild\

+

+set BUILDX86=

+set BUILDX64=

+set REBUILD=

+set OUTPUT=

+set PACKAGES=

+

+:CheckOpts

+if "%~1" EQU "-h" goto Help

+if "%~1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts

+if "%~1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts

+if "%~1" EQU "-r" (set REBUILD=-r) && shift && goto CheckOpts

+if "%~1" EQU "-o" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts

+if "%~1" EQU "--out" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts

+if "%~1" EQU "-p" (set PACKAGES=%PACKAGES% %~2) && shift && shift && goto CheckOpts

+

+if not defined BUILDX86 if not defined BUILDX64 (set BUILDX86=1) && (set BUILDX64=1)

+

+call "%D%..\msi\get_externals.bat"

+call "%PCBUILD%env.bat" x86

+

+if defined PACKAGES set PACKAGES="/p:Packages=%PACKAGES%"

+

+if defined BUILDX86 (

+    if defined REBUILD ( call "%PCBUILD%build.bat" -e -r

+    ) else if not exist "%PCBUILD%win32\python.exe" call "%PCBUILD%build.bat" -e

+    if errorlevel 1 goto :eof

+

+    msbuild "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x86 %OUTPUT% %PACKAGES%

+    if errorlevel 1 goto :eof

+)

+

+if defined BUILDX64 (

+    if defined REBUILD ( call "%PCBUILD%build.bat" -p x64 -e -r

+    ) else if not exist "%PCBUILD%amd64\python.exe" call "%PCBUILD%build.bat" -p x64 -e

+    if errorlevel 1 goto :eof

+

+    msbuild "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x64 %OUTPUT% %PACKAGES%

+    if errorlevel 1 goto :eof

+)

+

+exit /B 0

+

+:Help

+echo build.bat [-x86] [-x64] [--out DIR] [-r] [-h]

+echo.

+echo    -x86                Build x86 installers

+echo    -x64                Build x64 installers

+echo    -r                  Rebuild rather than incremental build

+echo    --out [DIR]         Override output directory

+echo    -h                  Show usage