Added pallete natural

Generation 1 is supporting more colors! now a semi terminated pallete called natural is begining to be created and it support a color pallete based on Google's material design. The main difference between natural and basics is that in natural, all colors have the prefix natural: instead of color-deepblue try with color-natural-deepblue.

This pallete is not terminated, but when it is ready, Generation 1 should have a new core feature.