Waveshare - Partial update support for 4.2

**Describe the problem you have/What new integration you would like**

The 4.2inches waveshare screen don´t currently support the partial update feature (implemented using full_update_every for the 1.54in, 2.13in) however the hardware allow to do it. An Arduino user using a ESP32 is able to do it, and shows how in [this video](https://www.youtube.com/watch?v=mySnfyyL4i4)

**Please describe your use case for this integration and alternatives you've tried:**

I am currently using the full update with 1min change. The problem is that it looks terrible and don´t allow higher refresh frequency.

I could code the .ino sketch and upload it, but then the integration with the other sensor would be significantly more painfull.

**Additional context**