These commands are not implemented so I have removed them from the cta-admin
interface.

This will prevent the process surviving during signal propagation time.

The status of the repack request is updated throughout all its lifecycle (Pending, ToExpand, Starting, Running, Complete or failed)

Refactored the async deletion of repack subrequests files via XRootD (used the xroot's async deletion)
Deleted the folder containing the repack subrequests files (Local file + XRootD)

The folder containing the files need now to be removed

Replaced the map of tape files with a list as the assumption that we have one copy per copyNb is no more valid with repack.

The retrieve requests now carry all the information necessary to create the archive jobs.
Retrive requests carry an isRepack boolean. The distinction between repack and non-repack behaviour
is pushed as low as possible in the api (in the object store) so that client code can be more
generic. For the same reason, the
The expand repack mode (re-creation of missing tape files) is not supported yet.
Changed the represenation of copy numbers to uint32 (as this is the smalled number supported but protocol buffers).
Added ArchiveRoute::StorageClassMap and ArchiveRoute::FullMap to store archive routing in memory.
Added repack buffer base URL support, and mechanism to compute temporary copy location in disk cache.
Fixed bug in ObjectOps<>::asyncInsert();
Inplemented the path generation for repack disk storage (<BaseURL>/<VID>/<FSeq (09%d)>).

Harmonized the copyNb type to uint32_t
Corrected a bug in RetrieveQueue::getContainerSummary() --> After insertion in the queue, the number of files and bytes added were equal to 0.

Queueing of Archive Jobs is done and unit tested
Queueing of Retrieve Requests is not completely done yet

Removed the "User" message from the cta.proto (duplication of UserIdentity message)

Repack RetrieveRequest reported as success after mount and retrieve successful (expandRepackRequest)

Replaced 'catch (cta::exception::Exception)' within 'Configuration.cpp' by 'catch (cta::exception::Exception &)' in order to avoid 'catch-value' compilation error on newer compilers

Removed unused ex variable from 'catch (cta::exception::Exception ex)' within common/Configuration.cpp