Added doc support to OS-Flavors Extensions

Adds doc support to os-flavor-access and os-flavor-extra-specs
Samples were curated.
Fixes: bug 1073762
Also fixes: bug 1109175

Change-Id: Ia26467ed45c0368d770c25a1f2c85665986d38c2
Merge "Added doc support to OS-Flavors Extensions"