Disable FTK TriggerTest ART tests in master (ATR-20424)
(For now keep files as "back_xxxxxx" in case someone discovers they still need a test to finish off FTK work)
renamed: test_physics_pp_v7_primaries_ftk_build.sh -> back_physics_pp_v7_primaries_ftk_build.sh renamed: test_physics_pp_v7_primaries_ftk_grid.sh -> back_physics_pp_v7_primaries_ftk_grid.sh