Support ESL (electronic shelf label) BLE displays

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

There are projects that allow users to use ESL'a as a portable displays and with long battery life, they are ideal for dashboards.
Recently some BLE based tags showed up, like this one: https://pl.aliexpress.com/item/1005002399342939.html
We can pick 2.1, 2.9, 4.2, 7.5 and 10.2 inch displays.

Projects like https://github.com/OpenEPaperLink allows using ESP32-S3 as a gateway to communicate with the display.
This requires additional hardware (another ESP32) and a dedicated integration to be able to display anything from HA.

With dedicated support we could use ESPHome draw API to create content and send it to the ELS displays.

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

I have currently two displays in my house, both are used to display waster collection data, but I already plan to add additional ESL's (4,2 inch) to display weather info and some NAS statistics.

This is my design so far:

**Additional context**

See example displays for inspirations: https://github.com/OpenEPaperLink/Home_Assistant_Integration/wiki/1.54%22%2C-2.9%22-and-4.2%22-Weather-display-using-met.no%2C-Moon-phase%2C-Gotham-Round-font

The request names no repository files, tests, or implementation entry point. Start by reviewing the OpenEPaperLink project and ESPHome draw API references mentioned here; done would require a defined integration that can send generated dashboard content to the listed BLE ESL displays.

Written by the indexing model from the issue text.