Add GC9A01 Driver

[lmatte7]

This PR adds driver support for the Waveshare 1.28in circular display. A lot of the code was based on the driver code for ST7735 with specific updates for this board. The full datasheet is available here.

The driver has been tested and can successfully run the display with a RPI Pico and a ESP32.

[deadprogram]

Any comments @sago35 or @conejoninja before merging?

[sago35]

@lmatte7
For the most part, I think it is very good.
I commented because I would like to make the same design as other drivers.

Please update README.md.
Add a test to smoke-test in the Makefile.

If possible, please keep the interface in the same form as the st7735 and ili9341 interfaces.
In other words, we want int16 to be used instead of int32 in many places.
https://github.com/tinygo-org/drivers/blob/release/st7735/st7735.go
https://github.com/tinygo-org/drivers/blob/v0.22.0/ili9341/ili9341.go

[lmatte7]

@sago35 Thanks for the feedback! I’ll make the changes and send an update.

[sago35]

I will review it tomorrow or so.

[sago35]

@lmatte7
Please add sleep to examples.
I will approve if you add it.

[sago35]

LGTM
Thank you!

[deadprogram]

Now going to squash/merge thank you for working on this @lmatte7