Migrate Jenkins CI to Equatower

Summary:
The Jenkins CI master and the containers will use a dedicated network,
isolated from the Jenkins CD network.

The access to CI will be more liberal.

CI containers won't have deployment capability and won't have any SSH access
to do things to the other servers. As such, deployment jobs currently in the
CI will need to be moved to the CD.

Ref T1431

Test Plan:

1. salt equatower state.apply roles/paas-docker/containers/jenkins
2. salt equatower state.apply roles/paas-docker/containers/jenkins_slave
3. Browse https://ci.nasqueron.org/

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T1431

Differential Revision: https://devcentral.nasqueron.org/D1760