Initial configuration providers w/o resolving/valdation functionality

[jreineckearm]

Fixes

N/A

Changes

• Added configuration provider routing configs to subproviders as needed.
• Subproviders are configuration providers themselves (reuse of VS Code API), but are not directly registered to VS Code.
• Adds skeleton implementations for pyOCD and Segger JLink GDB Server.
• Current assumption (to be validated later)
  • pyOCD executables called pyocd on all host platforms with optional .exe on Windows.
  • Segger J-Link GDB server executables called JLinkGDBServer with optional .exe on Windows.
  • Tested at the moment case insensitive. Later add validation of executable name on Unix systems.
• Remove previously replaced ESLint config file. eslint.config.mjs is actively used already.
• Updated some copyright years.

TODO:

• Add parameter resolver and validation functionality to the two variants.
• Add default configuration snippets for Segger J-Link GDB Server.

Screenshots

Checklist