Apply initial CIFilter functionality
Add new FilterVC class to simplify our rootVC
No functional change.

Commenting out some filters for now.
Renaming variable.
Add rootVC::property 2 update originalImage setter
No functional change.

Removing unused method getImageSepia.
Redo Filter functions

- Add delegate to FilterVC & move the scrollView with all filter
functionality from rootVC into filterVC.
- Add protocol delegate to FilterVC so that it can talk upwards to our
rootVC and tell it to update pic with our new filter.
- NOTE how we had to use viewWillLayoutSubviews instead of viewDidLoad.
The former only runs once but the viewDidLoad runs multiple times (so
we kept losing the button images).
NFC. Move shrinkImage method to our Utility class.

No functional change. Just moving the method.
TAW- HSB, Blur and Filter workshop

This needs to be completed and then merged into the Selfy App.
No functional change.

Removing unnecessary file.