Eliminate Sphinx Warnings from svnfm repo

Eliminate Sphinx Warnings from svnfm repo

Add .gitreview file
Add docs directory and index at repo level
Add sections at repo level for each driver subdirectory
Referenced some txt and json input files from each driver directory
Added entries in nokiav2/docs/index for orphan rst files
Corrected some doc8 errors/warnings
DO NOT MERGE until each driver contributor reviews proposed changes

Change-Id: Id33124d199e0c01b3bbbffc6dd62c1e0536416ed
Issue-ID: VFC-919
Signed-off-by: Rich Bennett <rb2745@att.com>