Implemented 16Bit HD108-Leds in HyperionNG

[FutureMan0]

Summary
This PR implements support for 16-bit HD108 LEDs in HyperionNG. It makes it possible to use the highspeed LEDs and adds new configuration options for HD108 LEDs.

What kind of change does this PR introduce? (check at least one)

• Feature
• Bugfix
• Code style update
• Refactor
• Docs
• Build-related changes
• Other, please describe:

If changing the UI of web configuration, please provide the before/after screenshot:
N/A

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing setups:
N/A

The PR fulfills these requirements:

• When resolving a specific issue, it's referenced in the PR's body (e.g. Fixes: #xxx[,#xxx], where "xxx" is the issue number)

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature
• Related documents have been updated (docs/docs/en)
• Related tests have been updated

PLEASE DON'T FORGET TO ADD YOUR CHANGES TO CHANGELOG.MD

• Yes, CHANGELOG.md is also updated

To avoid wasting your time, it's best to open a feature request issue first and wait for approval before working on it.

Other information:
This feature includes the following changes:

• Added LedDeviceHD108.cpp and LedDeviceHD108.h for HD108 LED support.
• Created a new JSON schema for HD108 configurations (schema-hd108.json).
• Implemented HD108 into (content_leds.js).