Config: testing/replays/nav-replay: Removed obsolete file.
Config: adamastor: Removed references to Navigation.AUV.Navigation.
Config: auv/navigation: Removed references to Navigation.AUV.Navigation.
Config: testing/replays/sgnav-dolphin-replay: Removed references to Navigation.AUV.Navigation.
Config: testing/replays/sgnav-replay: Removed references to Navigation.AUV.Navigation.
Navigation/AUV/Navigation: Removed legacy task.
Navigation/AUV/SGNavigation: Removed proprietary license from from Task.cmake.
Navigation/AUV/Navigation: Renamed task Navigation/AUV/SGNavigation to Navigation/AUV/Navigation.
Merge remote-tracking branch 'origin/feature/del-legacy-navigation'

Feature: Replaced legacy Navigation/AUV/Navigation with
Navigation/AUV/SGNavigation. The task used by all AUVs is now called
Navigation/AUV/Navigation.

Authored By: Ricardo Martins
Reviewed By: José Braga