feat(cmmn): deploy a CMMN 1.0 Xml to the engine

This commit adds the feature to deploy a CMMN 1.0 XML to the engine.

Furthermore this commit provide a new structure how to transform a CMMN
1.0 XML into an engine executable model. Therefore this commit adds the
following subjects:

- handler for each CMMN Element
- transformer to walk through the Cmmn Model

related to CAM-2199
feat(caseDefinitionQuery): Expose CaseDefinitionQuery via Rest API

related to CAM-2199