Setup production pages application and sites domains

[davemcorwin]

Background (Optional)

Register wildcard domains needed for pages app and sites

Acceptance Criteria

Setup and ssl cert for following domains:

• [ ] *.sites.pages.cloud.gov
• [ ] *.pages.cloud.gov

Level of effort - medium

Implementation outline (if higher than "low" effort):

• [ ] see https://github.com/cloud-gov/cg-provision/pull/855