feat(init): KittyMacro

Roblox macros that play from outside the game: Anime Vanguards, and a
falling-notes piano event.

KittyMacro.bat

@@ -0,0 +1,6 @@
+@echo off
+rem KittyMacro - double-click to open the window.
+rem pythonw so no console sits behind it; python.exe if that is all there is.
+cd /d "%~dp0"
+where pythonw >nul 2>nul
+if %errorlevel%==0 (start "" pythonw "%~dp0gui.py" %*) else (python "%~dp0gui.py" %*)