modified meshes - size reduced - readme and license added

robots/alex_description/README.md

robots/alex_description/meshes/ALX02_01_A02_HeadLink.obj

robots/alex_description/meshes/ALX02_02_A06_TorsoLink.obj

robots/alex_description/meshes/SakePalmLink.obj

...ts/alex_description/meshes/TorsoFixedBaseWithoutSpine.obj

...x_description/meshes/cycloidal_arm/LeftElbowPitchLink.obj

...x_description/meshes/cycloidal_arm/LeftGripperYawLink.obj

...escription/meshes/cycloidal_arm/LeftShoulderPitchLink.obj

...description/meshes/cycloidal_arm/LeftShoulderRollLink.obj

..._description/meshes/cycloidal_arm/LeftShoulderYawLink.obj

...ex_description/meshes/cycloidal_arm/LeftWristRollLink.obj

...lex_description/meshes/cycloidal_arm/LeftWristYawLink.obj

..._description/meshes/cycloidal_arm/RightElbowPitchLink.obj

..._description/meshes/cycloidal_arm/RightGripperYawLink.obj

...x_description/meshes/cycloidal_arm/RightWristRollLink.obj

...ex_description/meshes/cycloidal_arm/RightWristYawLink.obj

robots/alex_description/meshes/cycloidal_arm/nub.obj

robots/alex_description/meshes/fb_palm_ref.obj

robots/alex_description/meshes/fb_palm_ref_mir.obj

robots/alex_description/meshes/full_model_fused_no_wrist.obj