Extend the FR and ES keyboards from the EN one, and
just tweak what has to be changed.
This will allow them to stay in sync with the EN keyboard's
recent and futur developments of key popups.
Also make the FR keyboard a bit more AZERTY.
Provided by @gerhaher: removed some duplicated keys, replaced
them with other useful ones (to swedish and kenyan people).
Stick cyrillic letter io to a single key
French keyboard: aligned to std.lua, fixed '.' and ',' keys.
