Import of ceph-ansible project modules

Imported ansible modules from the ceph-ansible project.

What's Changed

• Documentation update by @asm0deuz in #1
• Fixes CI Sanity errors on ansible 2.18 by @asm0deuz in #5
• Import ceph ansible modules by @asm0deuz in #3
• Fix galaxy version for new release by @asm0deuz in #8

Full Changelog: https://github.com/ceph/ceph.automation/commits/1.1.0