Add iCubGazeboV2_5 model

[diegoferigo]

The iCub model has been taken from iCubGazeboV2_5/model.urdf and adapted to work in Ignition Gazebo.

[traversaro]

Personally I would have avoided the indentation only file change 54e430a that will complexifies quick comparison against icub-models's models in the future and porting changes from this repo to icub-models, but I guess this is not blocking the PR.

[diegoferigo]

It speeds up development though :) I didn't consider comparisons, you're right. It's too late now to roll back, a rebase would not work in this case.

[traversaro]

It speeds up development though :)

Just to understand, why four spaces indent speeds up the development over two spaces indent? Note that those files were already indented programmatically using the pretty_print option of lxml.

[diegoferigo]

It's not the indentation that speeds up the development. Simply, when I save in my setup all files get reformatted, and it happened that I had the 4 spaces enabled by default.

[diegoferigo]

As a workaround, I can format back the file to 2 spaces. One extra commit would not harm :)

[traversaro]

As a workaround, I can format back the file to 2 spaces. One extra commit would not harm :)

As you prefer, you can even just re-format back when we will need comparisons.