Add LANGUAGE_FR_FR localization

[9Ri7]

Hi,

I added a localization for France.
I hope you will like it, that I did not make a mistake and that it will do the job.

I think I’ll try to add the ability to change the localization in the menu with the variable stored in EEPROM later.

Keep up the good work. See you soon.

9Ri7

[Carias42]

Merci,
J'aimerai tester cette version fr, pouvez vous publier sur M5 burner ?

[n0xa]

Merci!