add run_gettext.bat for Windows

run_gettext.bat

@@ -0,0 +1,24 @@
+@echo off
+REM OrcaSlicer gettext
+REM Created by SoftFever on 27/5/23.
+xgettext --keyword=L --keyword=_L --keyword=_u8L --keyword=L_CONTEXT:1,2c --keyword=_L_PLURAL:1,2 --add-comments=TRN --from-code=UTF-8 --no-location --debug --boost -f ./bbl/i18n/list.txt -o ./bbl/i18n/OrcaSlicer.pot
+./build/src/hints/Release/hintsToPot.exe ./resources ./bbl/i18n
+
+REM Print the current directory
+echo %cd%
+set pot_file="./bbl/i18n/OrcaSlicer.pot"
+
+REM Run the script for each .po file
+for /r "./bbl/i18n/" %%f in (*.po) do (
+    call :processFile "%%f"
+)
+goto :eof
+
+:processFile
+    set "file=%~1"
+    set "dir=%~dp1"
+    set "name=%~n1"
+    set "lang=%name:OrcaSlicer_=%"
+    msgmerge -N -o "%file%" "%file%" "%pot_file%"
+    msgfmt --check-format -o "./resources/i18n/%lang%/OrcaSlicer.mo" "%file%"
+goto :eof