add environnement for jump and test script

CMakeLists.txt

data/meshes/ground_bigStep.stl

data/meshes/ground_jump_easy.stl

data/meshes/ground_jump_med.stl

data/meshes/ground_square.stl

data/srdf/ground_bigStep.srdf

data/srdf/ground_jump_easy.srdf

data/srdf/ground_jump_med.srdf

data/urdf/ground_bigStep.urdf

data/urdf/ground_jump_easy.urdf

data/urdf/ground_jump_med.urdf

script/tests/robot_bigStep_path .py

script/tests/robot_jumpEasy_path .py