davix 0.2.10 (new formula)

Create the formula for davix, a fast and feature-rich HTTP and DAV
client and HTTP/DAV library.
It is used in the High Energy Physics community, specifically in the
analysis framework ROOT (http://root.cern.ch/drupal/) for data
access via HTTP/DAV.

Closes #29620.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>