feat: Add Zephyr module configuration and README

This commit introduces the necessary files to make the vnd7050aj driver
a proper Zephyr RTOS 4.x module.

- Adds  to define the module's build configuration
  and DTS bindings.
- Creates a comprehensive  file with instructions on how to
  integrate and use the module in a Zephyr project.

Signed-off-by: Eduard Iten <eduard@iten.pro>

README.md

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+# Zephyr VND7050AJ Driver Module
+
+This repository contains a Zephyr RTOS module for the STMicroelectronics VND7050AJ high-side driver.
+
+## Module Structure
+
+*   `drivers/misc/vnd7050aj/`: Contains the C source code for the VND7050AJ driver.
+*   `dts/bindings/misc/`: Contains the Devicetree binding for the VND7050AJ.
+*   `include/zephyr/drivers/misc/vnd7050aj/`: Contains the public header file for the driver.
+*   `zephyr/module.yml`: Defines this directory as a Zephyr module, specifying its build configuration and DTS bindings.
+
+## How to Use This Module
+
+To integrate this module into your Zephyr application, follow one of these methods:
+
+### 1. Using West (Recommended for larger projects)
+
+If your project uses West, add the following to your `west.yml` file:
+
+```yaml
+# west.yml
+projects:
+  - name: vnd7050aj_driver
+    path: modules/vnd7050aj_driver # Or your preferred path
+    url: <URL_TO_THIS_REPOSITORY> # Replace with the actual URL
+    # For local development, you can use:
+    # url: file:///path/to/your/local/vnd7050aj_driver
+```
+
+After modifying `west.yml`, run `west update` in your project directory.
+
+### 2. Placing the Module Directly in Your Project
+
+Copy the entire `zephyr_vnd7050aj_driver` directory into the `modules` directory of your Zephyr application. For example, if your application is `my_app`, the path would be `my_app/modules/zephyr_vnd7050aj_driver`.
+
+### Kconfig Configuration
+
+After adding the module, ensure you enable the necessary Kconfig options in your project's `prj.conf` file:
+
+```kconfig
+# prj.conf
+CONFIG_VND7050AJ=y
+```
+
+## Contributing
+
+Contributions are welcome! Please refer to the Zephyr Project's contribution guidelines for more information.

zephyr/module.yml

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+name: vnd7050aj_driver
+build:
+  cmake: .
+  kconfig: Kconfig
+  settings:
+    dts_root: .