[Feature] Implement classes with class properties and class methods

[ByteWolf-dev]

Is there an existing proposal for this?

• [X] I have searched the existing issues

This feature does not exist in the latest version

• [X] I am using the latest version

Proposal

Implement AST Nodes, semantic analysis and code generation for classes, class-methods and class-properties

Exact behaviour / changes you want

The compiler should be able to create classes which can have methods and/or properties.

[Luna-Klatzer]

Implemented by #675.