GitHub service account

We will need to create an IronBank (pipeline?) GitHub account in order to pull Docker Images from GitHub package registry. This will tie in to the Docker authentication we permit in import-artifacts.

The following is a writeup on the types of accounts offered by GitHub:

https://docs.github.com/en/free-pro-team@latest/github/getting-started-with-github/types-of-github-accounts

Acceptance criteria:

• Creation of account of selected type
• Verification account is able to pull from GitHub package registry in the import-artifacts step