Create fr_FR.lang

spiceoflife.tooltip.food.until.enabled.2 don't have a logical translation because I don't think it has a meaning (and it's the second time I have to restart the translation because of my connection, so I feel I'm getting tired of this at the moment)
Updated French translation according to @AegisLesha

 * See: https://github.com/AegisLesha/SpiceOfLife/commit/8c95550cadf52d89e530df11aa6bd092f288beee#commitcomment-7613488