[WIP]: HTML bundle loader dynamically through import statement. (#178)

[abiduzz420]

• All tests passing.
• Prettier format done

Changes included:

• added @webcomponents/webcomponentsjs dependency as a polyfill
• created loadHTMLBundle method in bundle-loader.js
• included html-import directory in test/integrations.
• wrote a test to support dynamic imports in HTML

This PR is still Work in Progress

[abiduzz420]

This issue solves the problem from issue #178

[abiduzz420]

To-do

• inject webcomponents script as a dependency for the assets that need it
• Changes to be added to HTMLPackager.js

[devongovett]

This shouldn't be a dependency of parcel - it should be in the project

[devongovett]

This will become easier after #473 is merged. It will allow you to register custom bundle loaders which will be included as needed.

[tan9]

Hi @abiduzz420 , any progress on this PR? I found #473 has been merged.

[devongovett]

Closing in favor of #1528.