Add a rough build all parallel batch script

buildAllParallel.bat

@@ -0,0 +1,35 @@
+@echo off & setlocal enabledelayedexpansion
+
+
+echo ==================== Getting versions to build... ====================
+mkdir _buildAllJars 2>nul
+del _buildAllJars\* /Q 2>nul
+
+set "ROOT=%~dp0"
+set "WORK_DIR=%ROOT%_buildWorkers"
+mkdir "%WORK_DIR%" 2>nul
+
+
+REM get the number of versions to compile
+set count=0
+for %%f in (versionProperties\*) do set /a count+=1
+echo ==================== Found %count% versions to build in parallel ====================
+
+REM Launch a parallel job for each version
+for %%f in (%ROOT%versionProperties\*) do (
+    set version=%%~nf
+	
+	echo starting [!version!]...
+    start "Build !version!" cmd /c ""%ROOT%build_worker.bat" "!version!" "%ROOT%" "%WORK_DIR%" ""..\..\_buildAllJars"""
+	
+	REM Minor timeout between launches so we can stop the build early if we only want 
+	REM to test part of the script and to reduce startup load
+	timeout /t 3 /nobreak
+	
+REM 2>nul to supress a harmless warning that the for loop
+REM "cannot find the drive specified"
+) 2>nul
+
+
+echo ==================== All builds started... Completed Jars will be in _buildAllJars ====================
+endlocal