Enhance parser for reference collection and testing improvements

[worksofliam]

Implement initial reference collection in the parser, refactor setup, and enhance the tokenization function. Add comprehensive tests to ensure functionality and improve C specification parsing. All test cases are now passing.

Whomever will be testing this mostly needs to test that functionality is VS Code is working as expectedly. I have done this myself of course, but never hurts to get more hands on it.

• Adds support for collecting references in the parser, where previously the linter was required
• Parser can not collect references of fixed-format, mixed-format and free-format. Previously only free-format was supported.
• Go to references correctly shows references across multiple files
• parser.js converted to TypeScript 🙏
• Cleaned up how keywords were representing in the parser.
• Lots of new test cases added. Also, added a tests/sources folder where we can embed lots of source code for mass parser testing.
  • I have brought in bbs400 and bob-recursive-examples as submodules. They are not required for development or testing, but when major changes to the parser is made, it's likely a good idea to clone the submodules before running the test cases manually.