feat(project): Offer configPath property to workspace configs (workspace/1.1)

[maxreichmann]

JIRA: CPOUI5FOUNDATION-1233

---

This offers a configPath property to workspace dependency resolution entries as follows:

specVersion: workspace/1.1                      // new specVersion
metadata:
    name: default
dependencyManagement:
    resolutions:
        - path: ../test.library
          configPath: custom-config.yaml        // new customizable paths

(Introducing new specVersion workspace/1.1)