Added custom renderer package

[Lawrence Du]

After figuring out to write recipes, I decided to put my one custom Kivent module onto a github. It was way more trouble than its worth, but this may be useful for anyone who wants to shear, color, or stretch sprites and put that data all in a single component.

I mainly use it to get sprites to flash white on getting hit:

https://github.com/larsdu/spaceguppysfx