Document programs, libraries and apps

[jgvictores]

The contents should match in quantity:

• [x] https://github.com/roboticslab-uc3m/xgnitive/tree/develop/programs vs http://robots.uc3m.es/dox-xgnitive/group__xgnitive__programs.html
• [x] https://github.com/roboticslab-uc3m/xgnitive/tree/develop/libraries vs http://robots.uc3m.es/dox-xgnitive/group__xgnitive__libraries.html
• [x] https://github.com/roboticslab-uc3m/xgnitive/tree/issue-22-yarpmanager-xml/share vs http://robots.uc3m.es/dox-xgnitive/group__xgnitive__applications.html

[RaulFdzbis]

Finished in 88c1179a709f312b187e5b00a30bf14f99449ed2 , should we close it? Or let it open to start documenting classes, functions...?

[jgvictores]

@RaulFdzbis It's looking really good, I'm closing the issue, thanks!!!