Move configuration into module

[Zabot]

---

This diff is part of a fel stack

* #19 Check mergeability before landing
* #18 Improved mergeability checks
* #17 Admin merge behind a flag
* #16 Display colored mergability in fel status
* #15 Use PR template when submitting commits
* #13 Handle https repos
* #11 Move configuration into module
* #10 Don't fail when landing in a repo that deletes on merge
* master

[github-actions]

✅ Result of Pytest Coverage

---------- coverage: platform linux, python 3.8.10-final-0 -----------

Name	Stmts	Miss	Cover
fel/init.py	1	0	100%
fel/main.py	79	79	0%
fel/config.py	13	13	0%
fel/land.py	45	7	84%
fel/meta.py	14	0	100%
fel/pr.py	30	30	0%
fel/rebase.py	27	0	100%
fel/stack.py	20	20	0%
fel/submit.py	52	1	98%
fel/util.py	21	0	100%
TOTAL	302	150	50%

~ 12 passed in 6.08s ~