perf: implement lazy load for eszip entities

[nyannyacha]

What kind of change does this PR introduce?

Enhancement

Description

This PR changes the way opaque data is stored in eszip and makes allow lazy-load for individual data stored in eszip.

Sample

import { createClient } from 'npm:@supabase/supabase-js@2.42.0'
console.log(typeof createClient);
Deno.serve((_req) => new Response("Hello, world"));

Metrics (Observed lowest value in local)

	Previous	This PR	Change (%)
Bundle Size	22MiB	6.3MiB	-349.2%
Boot Time	1939ms	84ms	-2308.3%

Notes

It supports runtime migration for bundles created before this PR. However, performance will revert back to what it was before, so I recommend regenerating the bundle.

[nyannyacha]

Note:
Once this PR is merged, it is worth looking closely to ensure that it is completely compatible with the previous implementation.

cc @laktek @andreespirela

[andreespirela]

why removing this function? We could just create an async one?

[nyannyacha]

I recall that some of the functions it calls in its function body had their signatures changed to async, so I changed those functions to async due to contagious.

[nyannyacha]

I guess I could probably make that synchronously again by spawning async functions in the blocking threads