Applies the following changes:
add version number to documentation left navigation bar and page title
add an "About" section with a license page
enable htmlzip, pdf, epub formats when publishing on Read the Docs
set pdf title, author, copyright, and version
rename .sphinx/.doxygen to sphinx/doxygen
remove docBin from URL
update rocm-docs-core dependency
Change-Id: I947cf32cd42d9f4e55b1ddd324ad4a7e4ba3f3e3
Sam Wu