AngelScript: Co-routines

# Co-routines

Path: /sdk/samples/coroutine/

This sample shows how co-routines can be implemented with AngelScript. Co-routines are threads that can be created from the scripts, and that work together by voluntarily passing control to each other by calling yield().

- Context manager
- Co-routines created from the scripts with variable parameter structure.
- Strings
- Registered global functions
- Handling the variable argument type
- Passing arguments to script functions