Tests for RootResourceDescriptor Serialization
Fix RootResourceDescriptor serialization
Implement hashcode and equals for RootResourceDescriptor.

hashCode uses class.getName().hashCode() as Class does not implement hashCode and equals.
RootResourceDescriptor.toString includes endpoints.
Merge pull request #87 from isartcanyameres/fix/descriptor-serialization

Fix/descriptor serialization
Create ICoreProvider interace.
BindingManagement includes coreProvider.
APIConnector depends on coreProvider.
Modify network integration test with coreprovider to get core resource.
Add CoreProvider to examples classes.
Merge pull request #89 from adrian-rosello/feature/icoreprovider

Feature/icoreprovider
Merge branch 'master' into feature/auto-publish-core-API

Conflicts:
	api.rest/src/main/java/org/mqnaas/api/APIConnector.java
	examples/api-testapp/src/main/java/org/mqnaas/examples/api/testapp/APIConnectorTestApp.java