Creates base project to demonstrate the UIView keyframe animations

Gonna demonstrate colour and rotation direction.
Adds basic structure for the app

Created the UI and the API required for the sample app.
Adds methods to handle CW and CCW rotations

3 key frames in each of them
Adds rainbow animation to demo app
First draft of day 11's post

Needs pictures and a section writing about the different keyframe
animation options.
Added images, and wrote about option selection

Including drawing a graph of what the different keyframe options actually
mean.
Adds correct license headers to source files
Resized the graph

It was really rather large. Better size now.
Merge branch 'days/11-uiview-keyframe-animation'