add official pepper urdf

crowdbotsim/JulietteY20MP_crowdbotsim.urdf

crowdbotsim/meshes/HeadPitch_0.10.stl

crowdbotsim/meshes/HeadPitch_ears.stl

crowdbotsim/meshes/HeadPitch_eyes.stl

crowdbotsim/meshes/HeadPitch_milky.stl

crowdbotsim/meshes/HeadPitch_shiny.stl

crowdbotsim/meshes/HeadYaw.stl

crowdbotsim/meshes/HeadYaw_0.10.stl

crowdbotsim/meshes/HipPitch_0.10.stl

crowdbotsim/meshes/HipPitch_milky.stl

crowdbotsim/meshes/HipPitch_shiny.stl

crowdbotsim/meshes/HipRoll.stl

crowdbotsim/meshes/HipRoll_0.10.stl

crowdbotsim/meshes/KneePitch_0.10.stl

crowdbotsim/meshes/KneePitch_milky.stl

crowdbotsim/meshes/KneePitch_shiny.stl

crowdbotsim/meshes/LElbowRoll_0.10.stl

crowdbotsim/meshes/LElbowRoll_milky.stl

crowdbotsim/meshes/LElbowRoll_shiny.stl

crowdbotsim/meshes/LElbowYaw.stl