Allow breakpoints in workflow execution to make orders wait for user confirmation to continue

Current Situation

• Users would like to walk through a workflow step by step. After each step, i.e. workflow instruction, the execution should stop and should continue only after confirmation by the user. This allows to inspect variables at the given workflow position and to test suspend and resume operations.

Desired Behavior

• The desired behavior is somewhat similar to use of a Prompt Instruction before any available workflow instructions. However, users should not be required to modify and to deploy the workflow for this purpose.
• Instead, the behavior is achieved by use of breakpoints at which workflow execution stops. Any workflow position can optionally be preceded a breakpoint. Individual breakpoints can be set and all workflow instructions can be assigned breakpoints. The workflow automatically stops at each breakpoint.