Added localization conversion script for windows build

FossilOrigin-Name: 5de753035ea0f6c277123f36d25a2d35fb5c63c9

intl/convert.bat

@@ -0,0 +1,24 @@
+@echo off
+setlocal EnableDelayedExpansion
+set SCRIPTDIR=%CD%
+set PRJDIR=%SCRIPTDIR%\..
+set INTLDIR=%SCRIPTDIR%
+set QTPATH=C:\Qt\QtSDK\Desktop\Qt\4.8.1\mingw
+
+echo Converting localizations
+
+del %PRJDIR\rsrc\intl\*
+if not exist %PRJDIR\rsrc\intl\ mkdir %PRJDIR\rsrc\intl\
+
+for %i in ( %INTLDIR%\*.ts ) do (
+	set BASE=%~ni
+	
+	REM Convert all except the en_US which is 
+	REM the original text in the code
+	if not "!BASE!"=="en_US" (
+		echo !BASE!
+		%QTPATH%\bin\lrelease %i -qm %PRJDIR\rsrc\intl\!BASE!.qm
+	)
+)
+
+endlocal