Make maintainer scripts a submodule

[ben-grande]

Current problem (if any)

The dotfiles module requires CI scripts that are present on Qusal:

• Add CI dotfiles#2

Proposed solution

The best way I found to share the code is to make the maintainer scripts a submodule that both projects would use.

The value to a user, and who that user might be

• Developers will not have to maintain and sync the same code across different repos, but in a single one