MLang Interpreter Initial Release

🎉 Initial release of MLang!

• Full ANTLR4-based lexer and parser
• Custom AST node hierarchy
• AST pretty-printer
• Complete Interpreter
  • Variable declarations (let)
  • Arithmetic expressions (+, -, *, /)
  • Comparison expressions (==, !=, <, >, <=, >=)
  • Assignments
  • Control flow: if-else statements, while loops
  • Show statements for output
• Test infrastructure with sample .ml files

✅ Build and run using provided Makefile
✅ Easy to extend for future features (functions, floats, booleans)

This release marks the first complete version of MLang!