GitLab

Mostly changes to new unit tests.

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

Mostly changes to new unit tests.

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

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.

Renamed drData (and its fields) to diskFileInfo to better reflect the use that we make of that structure

Removed deprecated structures from archiveNS and nameserver namespaces. Removed RetrieveToFileRequest.