- FrameRate option sets device framerates from 39-111Hz
- VSyncLines option adjusts device vsync pause using st7789 "porch control" feature
- Added Rx(cmd, bytes[]) to support retrieving scanline timing data over SPI
- Added Sync functions to support syncronization of animation to vertical scanline timing
- Minor adjustments to Configure to clear screen memory before display is visible
* Fix setWindow bug, add CS pin for Clue compatibility.
- corrected bit shift in setWindow that broke high addresses
- added csPin to constructor (will now work with adafruit clue)
- small adjustments and comments to init routine based on working arduino driver
* Update main.go
Updated test example with CS pin.
* Reverting unnecessary (no-effect) change in setRotation.