Look at setting up the doc index pipeline for githubio docs

[JimSuplizio]

//CC @vcolin7 @danieljurek The docindex.yml file would be similar to the docindex pipeline in C, which only has one job which includes the common docindex.yml that only publishes to GitHubIO.

1. The Android build system would need to start producing packageInfo files, one for each library.
2. A docindex.yml file would need to be setup in the eng/pipelines directory. It would, literally, be the exact same as the one in C. The one in eng/common is the common publishing for githubio docs.
3. The Language-Settings.ps1 file would need a number of additions and a couple of corrections. Due to the nature of the functions pointers and whatnot used by scripts throughout the docs process this would require some involved tracing through the code.
4. Previously released libraries would need to get prepopulated into blob storage. The only library that's currently in there is azure-communication-common which was released on 04/06/2023.