Added alternative driver for the LilyGo T-Display S3.

[dragz]

I'm new to this so please be patient with me:-)

I've added an alternative driver (russhughes/st7789s3) to the firmware build for the T-Display S3 device. Is this of general interest?

After struggling for days (and burning half a rainforest worth of Claude tokens) to get the standard lvgl st7789 driver to work on this board I took an alternative route and included the driver from https://github.com/russhughes/st7789s3_mpy into the firmware build. It seems to work well as a backend for lvgl although not very fast or stable. The board crashes if I run the same program twice without a reset, but it works for my planned use of it as a little device to override some stupid functions in my car.

Is this something of general interest and worth a pull request or have I taken a completely wrong approach to this?