correctly use hrp2 files in the fullmBodyPlayer

script/dynamic/downSlope_hrp2_interp.py

script/dynamic/downSlope_hrp2_interp2.py

script/dynamic/fullBodyPlayerHrp2.py

script/dynamic/stair_bauzil_hrp2_interp.py

script/dynamic/wall_hrp2_interp.py

src/hpp/corbaserver/rbprm/tools/cwc_trajectory.py

src/hpp/corbaserver/rbprm/tools/cwc_trajectory_helper.py

src/rbprmbuilder.impl.hh