Archive-Epic: Added script to help moving project items.

[minosgalanakis]

This this a simple utility script that allows migration of projects from the Epics Board to the Past Epics.

It wraps aroud the github cli so it requires a valid token. In some cases it has added complexity because the newly introduced gh project api is inconsistent on the argument requirements, and had to manually use graphQL querries to extract the information.