Sort acme.sh and certbot files

Summary:
This change sorts 11 configuration files into acmesh/ and certbot/ subfolders
to avoid to confuse both of them.

That will also make easier to delete roles/core/certificates/files/certbot
once every server and every domain are migrated to use acme.sh

Ref T2043

Test Plan:

• no-op for functionality
• apply with test=True roles/certificates to check paths are correct

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T2043

Differential Revision: https://devcentral.nasqueron.org/D3731