Add support for waveshare generic MIPI DSI displays

[anhorbc]

Component name

mipi_dsi

Link to component documentation on our website

https://esphome.io/components/display/mipi_dsi/

Describe the enhancement

Add support for the (as of now) 15 different Waveshare MIPI DSI displays that uses the very same driver. I'm not a C++ coder, but I think the current MIPI DSI component quite easily could be modified to make this work. To me it looks like the waveshare code and esphome code regarding mpi_dsi is very similar. Waveshare driver code is available at link below.

Use cases

This would allow users to select from a whole new palette of different MIPI DSI displays that all uses the same driver and init commands. Some functions like i2c backlight could perhaps be implemented in a separate component or could be addressed with the i2c_device component. Or included in the possible upcoming addition of backlight support to the mipi_dsi component.

Anything else?

https://github.com/waveshareteam/Waveshare-ESP32-components/tree/master/display/lcd/esp_lcd_dsi