Manage GitHub projects as well

[nmerget]

I would be great if we could manage GitHub Projects as well.

Based on the configuration it could be like this:

Project Team:
  ...
  projects:
    roadmap:
      id: 1
      role: (admin | write | read)
    backlog:
      id: 2
      role: (admin | write | read)

Sadly the projects have an ID string with 1. Therefore, I would suggest using a name for better understanding.
Otherwise it could lead to issues if you forget a comment:

Project Team:
  ...
  projects:
    1: (admin | write | read) # This is the roadmap
    2: (admin | write | read) # This is the backlog

[mxmehl]

Thank you for the idea. My experience with GH projects is limited so I probably need to look into it more. I am optimistic that just like the teams and repos you do not have to provide IDs but rather names.

From the API docs it seems that the new Projects API is only available via GraphQL, not REST. The pygithub library we're using does not seem to support this yet: PyGithub/PyGithub#2140

For the maintainability of this project I'd like to keep the amount of custom API requests as low as possible. Right now we only use a custom GraphQL query for gathering the collaborator permissions.