add all used gazebo model files into repository so we don't need to f…

[le-horizon]

…etch them from gazebosim.org, and we can maintain stability of these models.

These are all the models I can find from the current repo.
We probably need to check it every time we add a new model to SocialRobot.

Thanks,
Le

[emailweixu]

Please add some description about the source of these files
Add make sure to we follow the license requirement: https://bitbucket.org/osrf/gazebo_models/src/default/LICENSE

Is it possible to disable downloading from the internet?

[le-horizon]

Please add some description about the source of these files
Add make sure to we follow the license requirement: https://bitbucket.org/osrf/gazebo_models/src/default/LICENSE

Is it possible to disable downloading from the internet?

Good points as always @emailweixu. Done both. PTAL?

Thanks,
Le

[emailweixu]

not all of them are from https://bitbucket.org/osrf/gazebo_models.
ball, texture_ground_plane, cartpole are created by us
pr2 and youbot_noplugin are from somewhere else

[Jialn]

pr2 and yobot are also copied from there... iCub is from https://github.com/robotology/icub-gazebo

[Jialn]

Thanks for the work. It's more convient now. There's problem download these models in mainland China I have to copy model file by hand everytime setup the running environment.

[le-horizon]

Glad to know it's helpful, Jiangtao. I updated the comments, let me know if you want to make any changes to where the model files are from.

Thanks,
Le