Add PyInstaller script for Windows

make_installer_win.bat

@@ -0,0 +1,18 @@
+@echo off
+set PACKAGE=revpicommander
+
+rem python -m venv venv
+rem venv\\Scripts\\activate.bat
+rem pip install -r requirements.txt
+
+pyinstaller -n "RevPi Commander" ^
+	--add-data="src\%PACKAGE%\locale;.\revpicommander\locale" ^
+	--add-data="data\%PACKAGE%.ico;." ^
+	--icon=data\\%PACKAGE%.ico ^
+	--noconfirm ^
+	--clean ^
+	--onedir ^
+	--windowed ^
+	src\\%PACKAGE%\\__main__.py
+
+rem deactivate