Add number of trajectories per flock argument

Signed-off-by: Thiago de Barros Lacerda <tbl2@cin.ufpe.br>
Add more of the flock detection algorithm

- Only add disk to DiskManager if it has at least the number of trajectories
passed as parameter by the user
- Lazily delete the generated trajectories created when adding then to temporary disks

Signed-off-by: Thiago de Barros Lacerda <tbl2@cin.ufpe.br>
Ordering trajectories in Disk class by Trajectory's id

This will be needed when verifying if a disk is subset of another disk

Signed-off-by: Thiago de Barros Lacerda <tbl2@cin.ufpe.br>
More of flock detecting algorithm

Only add a disk to DiskManager if it is not a subset of another disk

* Still need to clean DiskManager when processing a new time slot

Signed-off-by: Thiago de Barros Lacerda <tbl2@cin.ufpe.br>