Create github-hosted sphinx docs

[wcoleman-rti]

reference example:

• https://rticommunity.github.io/rticonnextdds-usecases-umaa
  • https://github.com/rticommunity/rticonnextdds-usecases-umaa/tree/main/python/docs
  • https://github.com/rticommunity/rticonnextdds-usecases-umaa/blob/main/.github/workflows/deploy-docs.yml