Add support for LCMEN2R13EFC1 2.13in display

[tadeastehan]

This PR adds the LCMEN2R13EFC1 2.13in display to the displays supported by the waveshare_epaper component.

Description:

Pull request in esphome with YAML changes (if applicable):

• [waveshare_epaper] Add support for LCMEN2R13EFC1 2.13inch display esphome#10210

Checklist:

• I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• Link added in /components/index.rst when creating new documents for new components or cookbook.

New Component Images

If you are adding a new component to ESPHome, you can automatically generate a standardized black and white component name image for the documentation.

To generate a component image:

1. Comment on this pull request with the following command, replacing COMPONENT_NAME with your component name in UPPER_CASE format with underscores (e.g., BME280, SHT3X, DALLAS_TEMP):

   @esphomebot generate image COMPONENT_NAME
   

2. The ESPHome bot will respond with a downloadable ZIP file containing the SVG image.

3. Extract the SVG file and place it in the images/ folder of this repository.

4. Use the image in your component's index table entry in /components/index.rst.

Example: For a component called "DHT22 Temperature Sensor", use:

@esphomebot generate image DHT22

[Copilot]

Pull Request Overview

This PR adds support for a new e-paper display model (LCMEN2R13EFC1) to the waveshare_epaper component documentation. The change enables users to configure this specific 2.13-inch display variant in their ESPHome projects.

• Adds the lcmen2r13efc1 display model option to the configuration variables list
• Includes descriptive text indicating it's used in the Vision Master E213 device

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_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

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