Documentation of functions and the Codebase for new Contributers.

[silverhadch]

There is documentation but i think more is better, so i will most likely write a big doc folder which contains more information

[Amjad50]

The docs is focused on plastic_core for now, since that what others will interact with most if they are using it as a library.

But you are right on the UI crates, those don't have docs