New feature: nutrition — Phyto Steam update #1312524

Introducing a new feature: nutrition It can be unlocked at the fruit upgrades, in the garden. It gives you a capacity to use in battle, to use biomass to add directly 10-20-30-40 or 50 (depending on skill upgrade) more ripening. It allows you to haste games when you are able to manage high damages and biomass gain... but use it with care too! :) Fix missing descriptions and add hover tooltip for speed buttons. Fix the special skill of the 3rd flower, "pollen expansion". It now makes what it was designed for: the pollen skill cost more but is more powerful, to have to use it less but for a greater effect!