[component] Google Contacts

[monikakuster]

As a Workflow Developer I want to be able to use the Google Contacts connector.

Technical Details: https://developers.google.com/people/api/rest Use Google SDK for Java.

Acceptance Criteria

List of implemented actions:

• [x] create contact
• [x] create group
• [ ] #1529
• [ ] #1528

Definition of Done:

• [ ] Unit/Integration tests
• [ ] Documentation