DMC-1301: Support for HTTP Tape Operations
In the context of adding support on gfal for the new Tape REST API, this MR exposes two new gfal2 tape operations via python-bindings
- gfal2_archive_poll
- gfal2_bring_online_v2
The gfal2_bring_online_v2 function extends the already existing gfal2_bring_online by allowing a new parameter called staging_metadata
to be passed to the bring online call.