first basic version of domain model for the CDK API
Changed model to plain POJO for serializing and made a first mock implementation of the License REST endpoint
Moved existing API controller and classes to 'api' package
removed the superfluous LicenseInformationResponse.java
Initial client support for cdk api.
Updated copyright
Worked on a LMNG query for license information.
Merge branch 'CDK-74'