CREATE_PROJECT: Add batch file to install natvis file

devtools/create_project/scripts/install-natvis.bat

@@ -0,0 +1,41 @@
+@echo off
+echo Installing Visual Studio debugger integration...
+
+REM On 2000 & XP, the folder is "My Documents" but VS 2012 is not supported on those OSes
+SET DOCUMENTS="%USERPROFILE%\Documents"
+set FOUND=0
+
+REM Set current folder
+cd /d %~dp0
+
+:INSTALL_VS11
+SET FOLDER="%DOCUMENTS%\Visual Studio 2012"
+IF EXIST %FOLDER% (
+    echo     Visual Studio 2012
+    copy scummvm.natvis %FOLDER%\Visualizers
+    IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+    SET FOUND=1
+)
+
+:INSTALL_VS12
+SET FOLDER="%DOCUMENTS%\Visual Studio 2013"
+IF EXIST %FOLDER% (
+    echo     Visual Studio 2013
+    copy scummvm.natvis %FOLDER%\Visualizers
+    IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+    SET FOUND=1
+)
+
+IF %FOUND% == 1 goto SUCCESS
+echo Failed to find Visual Studio user folder.
+
+:SUCCESS
+echo.
+echo Done!
+goto END
+
+:FAILED
+echo Failed to install visualization file
+
+:END
+pause