Add Binding type field

[philippfromme]

Describe the solution you'd like

As a follow-up to camunda/zeebe-bpmn-moddle#61 we need to add a Binding type field to call activities, business rule tasks and user tasks.

• Add dropdown "Binding" with the options latest and deployment to
  • Called element group of call activities
  • Called decision group of business rule tasks (below Decision ID)
  • Form group of user task (implementation type: Zeebe user task + form type: Camunda Form or implementation type: Job Worker + form type: Camunda Form (linked))
• Add tooltip to dropdown which explains the different options.
  • see suggested design and wording in: https://github.com/camunda/product-design/issues/1811

Additional context

Related to camunda/camunda-modeler#4385

[philippfromme]

Closed by #1067