Deeplinking processes in bpmn viewer

[arjangeertsema]

Description

BPMN processes can contain sub processes. See for example:

This sub process has the id: Activity_SubProcess

When a valid sub process path is added to the viewer the viewer should show the sub process instead of the main process when it is rendered for the first time.

<bpmn-viewer show-process="Activity_SubProcess" />

Multiple process are possible, and are separated wit a /:

<bpmn-viewer show-process="Activity_SubProcess/Activity_AnotherSubProcess" />

If the show-process value is not valid it should show the main process together with an error message.

Definition of done:

• [ ] show-process property implemented
• [ ] show process property handler implemented
• [ ] test scenario with no- and empty property passes
• [ ] test scenario with process on one level passes
• [ ] test scenario with process on multiple level passes
• [ ] test scenario with invalid process path and error message passes