[FEAT] Provide an IIFE bundle in the npm package

[tbouffard]

Is your feature request related to a problem? Please describe.
The first version of the npm package only provide ES modules, so I cannot evaluate the add-ons directly in my browser along with bpmn-visualization

Describe the solution you'd like
Create the bundle with the bundler of your choice. In bpmn-visualization, we use Rollup. We may reuse it to capitalize.

⚠️ WARNING ⚠️ bpmn-visualization (and its implementation) must not be integrated in the bundles. HTML pages will load it by themself. Remember that the code of bpmn-visualization is available as a global bpmnVisu object, so the produced IIFE bundle should use this global object. https://rollupjs.org/configuration-options/#output-globals may help.

Tasks

Beta Give feedback

1. Add build script to create the bundle
2. Include the bundle in the package
3. Choose a name for the global variable representing the bundle (for instance bvAddons)
4. Test the produced bundle in an HTML page. We could add a new workspace to handle the automatic tests
5. README: document how to use the IIFE bundle
6. README: warn users about the potential size of the bundle that cannot be tree-shaked. It includes all add-ons. In the future, there will be plenty with various variants.

[tbouffard]

We have decided not to pursue this feature. The main objective of this library is to experiment with ways to enhance tree-shaking for bpmn-visualization by offering tree-shakable features. Providing an IIFE bundle does not align with this goal.

So closing this issue.