Bugfix API update for additional responses, correlation-id, data-partition-id, /bootstrap API and other fixes

Found issues while preship testing M21:

• Adding additional API responses into OpenAPI Spec #118 (closed)
• Bugfix for junk in data-partition-id and correlation-id headers, both now must match a defined pattern (in conf.py)
• Bugfix for /bootstrap API
• Bugfix for PUT /tenant API #119 (closed)

Other cleanup/issues added:

• /health test fix for IBM #120 (closed)
• Lots of code cleanup
• Update CI to get build information for info API #67 (closed)