Feat/abfallio graphql

[miggi92]

This is not ready enough, but maybe some can take a look if this is going to the right direction.

Currently some abfall.io entries aren't working because they changed the API to GraphQL.
Example: "Landkreis Heilbronn"

see #3735

Some thoughts:

• maybe change the abfallio service to be able to handle graphql aswell and maybe directed by the service_map?
• look into a python graphql module to handle the calls better