Yocto agenda refactoring

[Taumille]

These 3 commits refactor the yocto agendas, starting from here, every structural commits which affects the yocto trainings will have to be done on yocto.inc.

The different yocto-agenda-*.tex files only contains information on :

• the language
• the type of training (onsite/online)
• and the different supported boards

Those commits also affects the way LaTeX prints the available boards for future refactoring of other training.

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[tpetazzoni]

Thanks for your work on this!

I think the split of the commits isn't ideal. Indeed, the first commit introduces some of the infrastructure and refactors one agenda, and the second commit introduces a bit more infrastructure and refactors the remaining agendas.

I would prefer to have one commit that introduces the infrastructure (new macros), one commit that introduces the definition of the agenda items for the Yocto course, and one commit that refactors all Yocto agendas to use this new infrastructure.

Ditto for the board refactoring IMO.

Also, one element in the agenda that isn't refactored in your series is the QA session at the end. I know when don't have it in a consistent way today, but we should take advantage of this refactoring to bring more consistency on this topic.