gitadora: Added support for GITADORA Delta (#476)

## Link to GitHub Issue, if one exists
None

## Description of change
- Added bi2x_hook
- Added J32D (drum) and J33I (guitar) emulations
- AMI2000 card reader (this game uses this instead of ICCA)

## Testing
Played through a 15-minute session on Drummania.
Guitar mode works with keyboard input.

src/spice2x/games/gitadora/bi2x_hook.h

@@ -0,0 +1,5 @@
+#pragma once
+
+namespace games::gitadora {
+    void bi2x_hook_init();
+}