Extension of the ProjectMetadata by the properties

[eklatzer]

Current Behavior

The ProjectMetadata model does currently not support custom properties

dependency-track/src/main/java/org/dependencytrack/model/ProjectMetadata.java

Line 46 in 687e997

public class ProjectMetadata {

, which are present in https://github.com/CycloneDX/cyclonedx-core-java/blob/master/src/main/java/org/cyclonedx/model/Metadata.java#L93

Proposed Behavior

Extension of the dependency track ProjectMetadata by the properties, which could be accessed and used when re-downloading the SBOM file. Additionally, the properties could be shown in the dependency track UI.

Checklist

• I have read and understand the contributing guidelines
• I have checked the existing issues for whether this enhancement was already requested