[script] move dynamic folder inside sandbox

...cenarios/sandbox/dynamic/bauzilStairs_hrp2_interStatic.py

...t/scenarios/sandbox/dynamic/bauzilStairs_hrp2_pathKino.py

script/scenarios/sandbox/dynamic/darpa_hrp2_interStatic.py

.../sandbox/dynamic/darpa_hrp2_interStatic_testTransition.py

script/scenarios/sandbox/dynamic/darpa_hrp2_interp.py

script/scenarios/sandbox/dynamic/darpa_hrp2_path.py

script/scenarios/sandbox/dynamic/darpa_hyq_interpKino.py

script/scenarios/sandbox/dynamic/darpa_hyq_pathKino.py

script/scenarios/sandbox/dynamic/darpa_hyq_pathKino_load.py

.../scenarios/sandbox/dynamic/darpa_line_hrp2_interStatic.py

script/scenarios/sandbox/dynamic/darpa_line_hrp2_path.py

...t/scenarios/sandbox/dynamic/downSlope_easy_hrp2_interp.py

...scenarios/sandbox/dynamic/downSlope_easy_hrp2_pathKino.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_interp.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_interp2.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_loadPath.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_pathKino.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_pathKino2.py

...enarios/sandbox/dynamic/downSlope_hrp2_pathKino_oneTry.py

script/scenarios/sandbox/dynamic/downSlope_hrp2_waypoint.py