feat: Add support for Tika MIME Types

This mostly adds extensions from the Tika data.

It is not clear whether this will be acceptable because of the
difference between the MIT and Apache 2 licences, and it is far too late
to switch to the Apache 2 licence for this data since I am not the only
contributor.

Updated documentation for Tika parser.

Closes: #142

Author: halostatue