Add sphinx documentation generation

This is part 1 of 2 of a change. Part 1 adds a generation process.
Part 2 will make the docstrings more complaint so the generated docs
look nice.

Issue-ID: RICPLT-1611
Change-Id: Ie065affe5a4e2d44182e536f71287b666263de0d
Signed-off-by: Tommy Carpenter <tommy@research.att.com>
11 files changed