Added constraints: we refuse to dump routes when they are not all set, and no 2 routes should point to the same tape pool.

Adapted the RootEntry to the non-permissive mode where overwrites and implicit deletions are not allowed.
Adpater the unit test of RootEntry.
Fixed an improper locking in a RootEntry unit test

the uid and gid of the CTA user that owns the file.

Changed the signature of the ArchivalRoute to include CreationLog and adapter the using classes accordingly.

Aded new unit test MockSchedulerTest/SchedulerTest.archive_to_new_file_as_admin which currently fails

Covered createStorageClass and createArchivalRoute so far.
Added HOST column in most tables of the SQLite schema.

Created a CreationLog struct on the scheduler side and used it in the OStoreDB's interface for simplification.

Further implemented OStoreDB.

Created a wrapper class for the couple Backend+OStoreDB as the unit tests expect a clean DB each time.

Added function to return the copy No. of RetrieveFromTapeCopyRequest and added the corresponding cpp in the CMakeLists.txt

Simplified the UserIdentity and CreationLog structures in the object store to match the SchedulerDatabase's.