Index a whole python module

[tazarov]

For now we should support only functions and not class methods.

Sample code:

import importlib
import inspect

def index_module(module_name: str, funtion_indexer: FunctionIndexer):
    # Import module
    module = importlib.import_module(module_name)
    functions = inspect.getmembers(module, inspect.isfunction)
    # print({fn: isinstance(f, functools.partial) for fn, f in functions})
    funtion_indexer.index_functions([f for _, f in functions])