Add support for outputting IIDX tape LED data via spiceapi (#315)

## Link to GitHub Issue, if one exists
#41 (partially)

## Description of change
This PR adds support for outputting IIDX tape LED data via spiceapi
(`iidx_tapeled_get()`). It returns the data as a `dict`, with the key
being the LED name and the value being the list of RGB values. You can
optionally pass in a variadic list of names to filter the returned data.

The new API function is only implemented in Python since I'm not able to
test the wrappers in other languages.

An example script using the new API is available in this Beef Board PR:
https://github.com/HWXLR8/beef-board/pull/133.

Demo use case: https://streamable.com/pq5e1e

## Testing
Tested in IIDX 32 with custom Beef Board firmware along with a Python
script to read and send the tape LED data over USB.

src/spice2x/README.md

@@ -247,6 +247,25 @@ which also means that your hex edits are applicable directly.
   - sets the contents of the 16 segment display and disables writes from game
 - ticker_reset()
   - re-enables writes from game
+- tapeled_get(name: str, ...)
+  - returns a list containing a dict of the current tape LED states. The dict keys are:
+    - `Stage Left`
+    - `Stage Right`
+    - `Cabinet Left`
+    - `Cabinet Right`
+    - `Control Panel Under`
+    - `Ceiling Left`
+    - `Title Left`
+    - `Title Right`
+    - `Ceiling Right`
+    - `Touch Panel Left`
+    - `Touch Panel Right`
+    - `Side Panel Left Inner`
+    - `Side Panel Left Outer`
+    - `Side Panel Left`
+    - `Side Panel Right Outer`
+    - `Side Panel Right Inner`
+    - `Side Panel Right`
 
 #### LCD
 - info()