v2.0-beta1

v2.0 for godot 4 is over a year in the making so far. This update brings many additions.

New:

• Support for Lua Coroutines via the LuaThread type
• Support for interacting with tuples via the LuaTuple and LuaCallableExtra types
• Support for getting lua functions as a callable via the LuaCallable type.
• Support for LuaJIT and lua 5.1 on top of 5.4
• Support for GDExtension
• Lots of code cleanup and improvement.

Removed:

• Threading is no longer supported.

Special thanks to @martimmatias for helping with the documentation.

While the version is being bumped to beta, this is by no means a feature freeze. A best effort will be made to maintain the current API. But there are no guarantees.