feat(spotless): implement integrated Spotless support

[teogor]

Description

This PR introduces integrated support for Spotless, allowing users to easily enable code formatting across their project using the winds extension.

Changes

• SpotlessUtils.kt: Created a new utility to handle Spotless plugin application.
• WindsPlugin.kt: Integrated configureSpotless into the plugin lifecycle, ensuring it responds to the features.spotless toggle.

Usage

Enable Spotless in your build.gradle.kts:

winds {
    features {
        spotless = true
    }
}

Verification

• Verified plugin application in a sample module.
• Confirmed that the Spotless plugin is only applied when the flag is set to true.