Add Pixel API v2

[brentru]

This pull request updates the src/pixels component for compatibility with WipperSnapper_Proto API v2.

• New Class: pixels/controller - Routes messages using the pixels.proto API to the appropriate hardware and model classes, controls, and tracks the state of pixel strands.
• New Class: pixels/model - Provides an interface for creating, encoding, and parsing messages from pixels.proto.
• New Class: pixels/hardware - Interface for interacting with NeoPixel or Dotstar pixel strands .
• Resolves bug: Refactor Pixel Component #730
• Resolves NeoPixels don't set to off when component removed or strand length updated #684

Minor:

• Updates the display-handling-related variables and methods to use the "V2" naming convention
  • Note: add_text_to_terminal() is disabled, for now as it is out of scope of this PR and was required to get FunHouse working for DotStar Testing

Testing

Board: Adafruit Feather ESP32-S2
Component: Built-in Status NeoPixel
✅ Init
✅ Remove/Deinit
✅ Write
✅ Write after deinit
✅ Off after deinit (bug)

Board: Adafruit FunHouse ESP32-S2
Component: 5x DotStars
✅ Init
✅ Remove/Deinit
✅ Write 5x DotStars
✅ Write 4x DotStars
✅ Write after deinit
✅ Off after deinit (bug)