Multiple "scenes" for screen resize (#270)

## Link to GitHub Issue, if one exists
Fixes #263 

## Description of change
Add "scenes" to screen resize.

* UI changes - F11 menu now has a "scene switcher" for `Scene 1/2/3/4`.
Clean up other UI bits.
* Add hotkeys for `Screen Resize Scene 1`, `Screen Resize 2`, and so on.
* Detect hot key and trigger resizes.
* Add additional objects to screen_resize.json for saving and loading
the new scene settings.
* Existing screen resize data is backwards compatible (can be
loaded/saved to JSON), and is treated as `Scene 1`.
* Add API endpoint for `Resize`, allow toggling resize on/off, switching
active scene
* Add Python wrapper. Did not bother with the other wrappers (Dart, C++,
etc)...

## Compiling
🥇 

## Testing
Still testing, but seems to work fine for TDJ.

src/spice2x/api/resources/python/spiceapi/__init__.py

@@ -12,3 +12,4 @@ from .keypads import *
 from .lights import *
 from .memory import *
 from .touch import *
+from .resize import *

src/spice2x/api/resources/python/spiceapi/resize.py

@@ -0,0 +1,12 @@
+from .connection import Connection
+from .request import Request
+
+def image_resize_enable(con: Connection, enable: bool):
+    req = Request("resize", "image_resize_enable")
+    req.add_param(enable)
+    con.request(req)
+
+def image_resize_set_scene(con: Connection, scene: int):
+    req = Request("resize", "image_resize_set_scene")
+    req.add_param(scene)
+    con.request(req)