Add ASCE7-05 Endpoint
Created by: ehunter-usgs
fixes #229 (closed)
Includes other PRs (merge these first, or merge these tickets and close the following PRs):
- https://github.com/usgs/earthquake-design-ws/pull/253 (ASCE07-05Factory)
- https://github.com/usgs/earthquake-design-ws/pull/254 (ASCE07-05Handler)