- Introduced `index.js` and `index.js.map` to export functions for checking identifier characters and names.
- Added `keyword.js` and `keyword.js.map` to implement functions for validating keywords and reserved words in JavaScript.
- Implemented various checks for strict and non-strict reserved words, including binding-specific checks.
- Introduced `readStringContents`, `readEscapedChar`, `readHexChar`, and `readCodePoint` functions to enhance string parsing capabilities.
- Implemented error handling for unterminated strings and invalid escape sequences.
- Added support for numeric separators in different numeral systems (binary, octal, decimal, hexadecimal).
- Included source maps for better debugging and traceability.
