1.5.18 - CI no longer tests leonardo when running check on seesaw_shield18_test

Bump to 1.5.18

Fixes rotation 2 and 3 caused by display size refactoring

This release fixes a bug introduced in 1.5.14 for rotations 2 and 3.

1.5.15 - Display size refactor and hints on changing SPI speed

This release includes an internal refactor of the display size calculations with no change in functionality.
Additionally it includes a handful of hints in comments on how to change the SPI speed

Internal display size refactoring

This release is just an internal refactor of the display size calculations and includes no change in functionality.

Updated graphicstest with a GREENTAB init option.

1.5.13

bumped version for release

Fixed ST7789 Reversed Display Init and Size

1.5.12

bumped version for release

1.5.11 - Removed useless assign

Update library.properties

1.5.10 - Actions updates

Update library.properties

Clang, actions, deps

clang-format repo
move from travis to actions
add missing SD dependancy

Add library dependancies

1.5.8

bump