Allow importing anything (except v1 addons) via Service Worker

[NullVoxPopuli]

Closes: #32, #1756, #1632, #1717, #477, #1805, #1717

Prior Service Worker Attempts:

• Service Worker Compilation #1717 - abandoned because I wanted to explore not using a service worker

Prior non-Service Worker Attempts

• Allow importing anything (except v1 addons) #1805 - abandoned because I don't have enough control over the imports -- there are situations, especially from CDNs where chained imports do not go through the polyfill

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