Create documentation for tests

Generate documentation for each test from its docstring.

The sphinx-apidoc tool is used to generate the .rst
files necessary for the generation of the documentation.

When the documentation is being build only functions that
start with "test" are passed to the resulting documentation.

Change-Id: I1878f67e10df9bb1f8289beda8e59a56b5057fe4
6 files changed