Round 2 / iso-filecoin

This is the first fully isomorphic javascript package for filecoin:

• Its small with very few dependencies and critical dependencies have 0 dependencies themselves. All crypto related dependencies have been audited and cherry picked.
• Work in all JS runtimes like browsers, nodejs, bunjs, deno, cloudflare, react-native and even the very restrited SES used in Metamask Snaps.
• It's the only maintained Filecoin JS package and used in Metamask Filsnap and Ledger Live Filecoin app.
• It's the only package that supports BLS accounts and sign/verify messages and arbitrary bytes.