Update docs

[tnorbye]

This CL updates the documentation for the built-in lint
checks as well as the AndroidX lint checks and some new
3rd party lint checks. This was generated by the issue
metadata extraction tool which was updated as follows:

• Includes the relevant Gradle dependencies to use to include the
  lint checks in your project.
• Includes information about other versions of the library, including
  change notes (which checks are added in each version), compatibility
  (minimum- and compiled-with- versions of lint for each version
  of the library), license, etc.
• A new index page listing all the availble libraries, and a dedicated
  page for each library listing which issues each library contains,
  license information, a library description, etc. extracted from the
  POM file.
• The documentation generation code now directly pulls jars, poms and
  source files from the network; you don't have to have a checkout
  of AndroidX (or the other libraries listed below).
• Includes additional well known 3rd party lint checks in the report,
  such as Slack's Compose lint checks.
• Looks for ID conflicts between libraries; if a link check is found
  in separate libraries, the conflicts are listed on the issue pages
  stating that you cannot combine these libraries.
• Fixes the code which extracts examples from unit tests such that they
  also work with lint checks which emit multi-line error messages
• Fixes artifact handling for multi-platform dependencies ("-android").