User Story (Required on creation): 

As a user, I can implement an appropriate With*Assertions interface to gain access to all necessary assertions and helper methods instead of adding star imports.

Functional Requirements (Required before implementation):

• Appropriate With*Assertions interfaces exist, providing access to all relevant methods

Technical Requirements (Required before implementation):

• Interfaces provide default implementations that proxy to the necessary static methods

Limitations of Scope (Optional):

Hints (optional):

• Creating on behalf of https://github.com/camunda/camunda-bpm-assert/pull/154