Added the ArchiveForRepack mountType to the Drive reporting
Transformed the DataTransferSession::mountTypeToString() to add the ArchiveForRepack mountType, transformed the normal "Archive" into "ArchiveForUser"

tapes

Add read-only tape flag support in the catalogue for the TAPE table.
Add RdbmsCatalogue::setTapeReadOnly method to modify this flag with
  "cta-admin tape ch" command.
Add RdbmsCatalogue::setTapeReadOnlyOnError to set this flag from taped.
Add support for rdonly flag listing for "cta-admin tape ls" and
  "cta-admin sq" command.

- Type of checksumBlob in cta.proto should be bytes not string
- ADLER32 passed into blob as uint32_t not string (conversion to
  bytearray is now handled inside the ChecksumBlob class)

* TapeFile::compressedSize is renamed to fileSize
* TapeFileWritten::compressedSize is removed, as it contains the same
  information as TapeFileWritten::size

- Type of checksumBlob in cta.proto should be bytes not string
- ADLER32 passed into blob as uint32_t not string (conversion to
  bytearray is now handled inside the ChecksumBlob class)

* TapeFile::compressedSize is renamed to fileSize
* TapeFileWritten::compressedSize is removed, as it contains the same
  information as TapeFileWritten::size

Deleted the checking of the presence of non superseded files during an Archive Mount.

Wrapped the content of MaintenanceHandler::runChild() into a new method MaintenanceHandler::exceptionThrowingRunChild()

This has been done in order to avoid the MaintenanceHandler to leak exceptions

This triggered the killing of the maintenance process by a sibling which had an unhandled exception and
hence called the destructor of the MaintenanceHandler. Usual use case sees an exit instead with no
full stack unwinding.

Moved disk-operations-related code into the new "disk" directory

Removed helgrind error by removing a linkage in the tapeserver/castor/tape/tapeserver/file/CMakeLists.txt file

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

Added the creation of the directory corresponding to the vid of the tape to repack (xroot + local file system)

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.

Added a check while mounting a tape for writing : if some tape files located in the writing tape are not superseded by others,
the write session will fail.

Note: The test CatalogueTest.exist_non_superseded_files_after_fseq is supposed to fail.