Show detailed nutrition data for each ingredient

--HG--
extra : amend_source : 7ef209cabb621eff074e4322710f099e126585f3
Use a default quantization when calculating nutritional data

--HG--
extra : amend_source : 857e0f70ce36bb7943cf4778802df090866acaf2
Add tests for the percent and the per_kg nutritional calculations
Show table with nutritional information on PDF as well