3.4.0

Added

• Added no-elif-return linter check
• Added no-else-return linter check
• Added gd2py (GDScript-to-python) converter tool
• Added gdradon code metrics tool

Fixed

• Workarounded a lark error impacting pretty print in frontends
• Fixed lack of trailing comma handler in some corner cases
• Fixed lack of support for plus prefixed expressions
• Fixed lack of support for Vector2/3() in match patterns
• Fixed formatter's corner case in func()