Add exit condition checking to build, deploy, package cmd files

Without the line checking the exit code, the script will not fail on a
failure from a subsystem.

build_scripts/win/build.cmd

@@ -1,5 +1,8 @@
 @ECHO OFF
 python build.py build
+IF ERRORLEVEL 1 EXIT /B 1
 call test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 del test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 PAUSE

build_scripts/win/deploy.cmd

@@ -1,5 +1,8 @@
 @ECHO OFF
 python build.py deploy
+IF ERRORLEVEL 1 EXIT /B 1
 call test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 del test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 PAUSE

build_scripts/win/package.cmd

@@ -1,5 +1,8 @@
 @ECHO OFF
 python build.py package
+IF ERRORLEVEL 1 EXIT /B 1
 call test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 del test.bat
+IF ERRORLEVEL 1 EXIT /B 1
 PAUSE