RestartModule & Scenemanager updates

- Rework restart command processing to correct an immediate restart
- Revise commands to be 'restart region', restart region abort' restart
region help
- Add command 'restart all regions'

SceneManager
- Small updates to display the correct restart times
TarArchiverReader

- small addition to skip hidden files (if any)
- add new ‘regions/‘ identifier (future proofing)
TerrainModule

- update to correct crash on Linux when loading embedded terrain file
- Rework ITerrainLoader locator for effected loading procedures
- Comment out unnecessary 'throw TerrainException' as Console message
is sufficient