Implement use of tree-sitter parser

[SteveL-MSFT]

PR Summary

• The primary change is to use the generated tree-sitter parser.
• Grammar was updated to have parent node for arguments and member_access
• Grammar updated so that string arguments don't include the quotes
• The statement parser creates expression which can contain functions
• Added base64 and concat functions for testing
• Some clippy fixes as the rules appeared to have been updated

Note that this parser is not integrated yet with config. That will come next replacing resourceId() with real function.