Dynamic API call injection

[Masrepus]

Provide ability to import API call implementations from external python files: provide access to internal apicall.py state, then each API call implementation can handle their respective task but can be customized by the user, or even extended by further API calls. Unimplemented ones should be dumped from MSDN, including the number of parameters and default return value, and converted to default implementation stubs that can then be customized.