Document the process/files for new search page

[ryscher]

• [ ] Document where the URL goes
• [ ] What the frontend files do

[ryscher]

Where the URLs go

• /v1 -- builtin django stuff
• v1/people/1 -- builtin django stuff
• /search
• /search/pi/1 --> backend/cic/views.py:pi_detail
• /search/people/pi/1 --> backend/search/views.py:pi_detail

[ryscher]

Updates to cleanup

• [ ] There is mostly duplicated stuff between "cic" and "search". Deprecate the stuff in "cic", but leave it until we know it's not needed
• [ ] eventually, we will want to simplify some of the URLs, but wait until stuff is mostly working