Provide general improvements to the crash reporting submission services
by adding a separate report access server with a simple UI and updating
the crashpad submission server to use waitress.
- changes crashpad.py to crashpad_submit_server.py
- adds report_access_server.py
- updates README.md
Gitlab: #1454
Change-Id: I4e97f77cf2e2c0bb405064b0187ed3dfc2ee703e
