Add improved telemetry displays

[nihonjinrxs]

The current FTC text telemetry is essentially useless beyond just a few lines of information, and the Telemetry plugin seems to mimic what happens on the Driver Station screen for the most part. Here are some ideas that might help with that and make telemetry display of raw values a little more helpful.

Not sure if these ideas would be best as improvements of the existing Telemetry plugin (i.e., likely not if the intent is to mimic what is on the FTC Driver Station screen) or if they would be new plugins.

1. Selectable telemetry value display
   Allow selecting values, as happens in the Graph plugin, to be displayed in the Telemetry display, to allow focusing on specific values when debugging, tuning, or testing something.
2. Color-block boolean flag views
   Allow display of booleans as red/green or black/white blocks of color on the screen, similar to what the Lights plugin does, but without all the fanciness, for easy view of state. This would also help with displaying proximity, touch or similar boolean-type sensor states.
3. Color-coded views of enum values
   Allow Telemetry display of enum values as color-coded enum value names to make it easy to see when an enum-typed variable changes states.

I'd be happy to contribute to implementing these with a bit of guidance if there were some docs on plugin development. As it stands, those pages say "Coming soon".