Provide an SPDX license expression in the POM

[niehues-itemis]

this fixes Provide an SPDX license expression in the POM

[Copilot]

Pull request overview

This PR implements SPDX license expression support in the Maven POM by replacing the hardcoded Apache-2.0 license with a dynamic license mapping system that reads license information from MPS's third-party-libraries.json file.

Key changes:

• Adds spdx-license-mapping plugin (version 1.0.1) from itemis cloud repository to handle SPDX license format conversion
• Replaces static license definition with dynamic license extraction from license/third-party-libraries.json within the downloaded MPS distribution
• Ensures POM generation tasks depend on unzipMPS to guarantee license file availability

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
settings.gradle	Adds pluginManagement configuration to resolve the custom spdx-license-mapping plugin from itemis cloud repository
build.gradle	Integrates SPDX license plugin, replaces hardcoded license with dynamic JSON-based license mapping, and ensures task dependencies for POM generation

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[sergej-koscejev]

Where can I see the sources of spdx-license-mapping plugin? Also, I have tried browsing the gradle-plugins repository but it seems it's not browsable, although the plugin can be downloaded.

Shouldn't the plugin have a fully qualified ID? e.g. com.itemis.spdx-license-mapping?