[ADAM-1821] Add missing fulltoc for Sphinx documentation.
[ADAM-1821] Add missing fulltoc for Sphinx documentation.

Resolves #1821.

heuermh/adam,bigdatagenomics/adam,bigdatagenomics/adam,bigdatagenomics/adam,heuermh/adam,bigdatagenomics/adam,heuermh/adam,heuermh/adam