Facilitate including new chips. Improve format and CI

[SergioGasquez]

• Update the format of the files and the resulting format
• Add checks in CI for all the targets
• I tried having some is_xtensa and is_riscv variables, but the only solution that I found was having this "header" on all the files
  • All the changes are in the fix/chip-scalability branch
  • As this was a pretty ugly solution, what I did to facilitate the addition of new chips is to update the if check. As we don't have any plans for releasing new Xtensa chips, it should be easier this way.

[jessebraham]

Looks pretty good overall, sorry for taking so long to get to this. Just a couple comments.

[MabezDev]

LGTM, thanks!