A function library (Patreon)

I wanted to do this right from the start but using an asset with a UI felt more usable to share with others.

But I am still going to build this function library for myself and I am also going to add these to my alexa app. 

The resulting dk_lib.h file will eventually be available the usual way as if it would be an asset. 

I want to have stuff I use very often available with as a quick function call.