[POC] Test the alternative terminal point implementation for 'no orthogonal segments'

[tbouffard]

Test implementation of process-analytics/bpmn-visualization-js#1863

[tbouffard]

First implementation issue c47d25a

Issue with the implementation of from process-analytics/bpmn-visualization-js@b042a98. This is reproduced with a dedicated visual test in process-analytics/bpmn-visualization-js#1863 as well.

When collapsing a pool, the message flow terminal waypoint is still on the hidden shape with the collapsed pool instead of targeting the pool itself.
The implementation should probably use the "terminal port" instead, see https://jgraph.github.io/mxgraph/docs/js-api/files/util/mxConstants-js.html#mxConstants.STYLE_SOURCE_PORT.

expected	current

[tbouffard]

Tests completed. It helps us detecting that we must disable the collapsing feature from the example. See process-analytics/bpmn-visualization-js#1863 (comment).
So closing.