[REFACTOR] Extract utils/shared code for generalization outside of this demo

[tbouffard]

See also #120

Extraction Tasks

Beta Give feedback

1. BpmnElementsSearcher: workaround for [FEAT] Add a new experimental API to get a edge/node by name bpmn-visualization-js#2453. See [FEAT] Provide the 1st implementation of BpmnElementsSearcher bpmn-visualization-addons#2
2. PathResolver: experimental implementation for [FEAT] Provide a way to style BPMN traces/paths bpmn-visualization-js#930 and [FEAT] Improvements required to support "style the BPMN traces/paths" bpmn-visualization-js#2402. See also refactor(demo): use the new flow/flownode links from the bpmn semantic in the draw path demo bpmn-visualization-examples#468. See [FEAT] Provide the 1st implementation of PathResolver bpmn-visualization-addons#1
3. BpmnElementsIdentifier: shared utility class, that extends ShapeUtil. [FEAT] Provide the 1st implementation of BpmnElementsIdentifier bpmn-visualization-addons#31

Use new shared implementation in this repository

Beta Give feedback

1. BpmnElementsSearcher refactor: use bv-experimental-add-ons #121
2. PathResolver refactor: use bv-experimental-add-ons #121
3. BpmnElementsIdentifier refactor: use bv-experimental-add-ons #121

[tbouffard]

All tasks are completed, so closing this issue.