Add CJS and ESM support

[Nesopie]

• Add support for CJS and ESM
• Moved from typeforce (does not have esm support) to Valibot
• Replaced Buffer usage to Uint8Array
• There are 44 less test cases now as all logic with regards to writeUint64 and related functions has been moved to uint8array-tools.
• All amount / value fields now use bigints

[junderw]

Legend!

Let's publish rc1 versions of all the major dependencies, then fix them in package.json here, then push rc1 version for bitcoinjs-lib.

[landabaso]

Great work on this HUGE refactor, @Nesopie! 👏

I noticed two related changes:

• 9c3e8cc – drops the named exports ripemd160, sha1, and sha256.
• 847090c – removes the unit tests that covered those helpers.

Because the PR is so large, I'm not sure whether that removal was intentional or an unintended side-effect.

A few of my own projects (and several others I found doing a quick internet search) use crypto.sha256, for example. Restoring the helpers would simplify the upgrade path to v7.

If the removal was accidental, I'm happy to open a follow-up PR that re-exports wrappers around Noble's hashes and brings the tests back.
If it was deliberate, it would be helpful to note it in the CHANGELOG.

Thanks again for all the work that went into this release!

[junderw]

Still haven't released 7.0.0 yet, so we can definitely get that in before 7.0.0 release if you want.

[landabaso]

Still haven't released 7.0.0 yet, so we can definitely get that in before 7.0.0 release if you want.

Great. I'll take it from here.

BTW, npm install bitcoinjs-lib now pulls in 6.1.7.
7.0.0-rc0 used to be the default, but I think that changed once the v6 patch from #2184 was later published to npm.

Once the helpers and tests are restored, if we still want the RC to be the latest, we can push a fresh RC and retag latest back to v7.