Include InkyFAST for faster updates to the screen for Inky pHat users

Requires testing, but someone made a hack to do faster partial updates to the display shown here:

https://github.com/wavelet2/inky_fast

More Details here: https://forums.pimoroni.com/t/my-inky-phat-clock-refresh-speed-question/6955/6

He notes on usage:

> To use, create a display by calling the function inky_fast.InkyPHATFast(“black”) or inky_delta.InkyPHATDelta(“black”) rather than Inky.InkyPHAT(colour) and then call the method show_stay_awake() rather than show() on the display object.

Review the linked wavelet2/inky_fast project and the Pimoroni forum discussion first, then locate the existing InkyPHAT usage in pwnagotchi. Confirm how the proposed InkyPHATFast or InkyPHATDelta calls would fit the project; done means faster partial display updates work for Inky pHat users.

Written by the indexing model from the issue text.