feat: optionally disable wasmbind

[8e8b2c]

Relevant issue: https://github.com/1Password/typeshare/issues/191

Make the chrono/wasmbind feature optional via default-features = false in order to prevent unwanted wasm module exports in environments where interfaces are restricted.

[seanaye]

Hi @8e8b2c, this repo requires all commits to be signed. You will need to setup commit signing and rebase your changes. Thanks for your contribution!

[8e8b2c]

You will need to setup commit signing and rebase your changes

Done :)

[dwosk]

@seanaye any chance this one can get merged?