TiLDA_EPD: first pass at implementing partial screen update. This is base on how its done in the repaper PlatformWithOS code but not happy with how it looks on the screen, needs more thought
TiLDA_EPD: example update
TiLDA_EPD: Line test example, messing around to try and update just one line
TiLDA_EPD: minor example updates
Merge branch 'develop' into feature/EPD_Partial_Update

* develop:
  Debounce: Adding new helpers for TiLDA button setup and interrupts
TiLDA_EPD: update examples with new debounce button helpers
Merge pull request #1 from EMF-TiLDA/feature/EPD_Partial_Update

Feature/epd partial update