feat: timeline and close checking

[jacobheun]

• Adds checking and docs for timeline (open and close)
• Adds checking and docs for close on the MultiaddrConnection
• Adds checking and docs for filter. It's been around, but hasn't been documented or tested
• Removes reference of the go implementation. This repo was originally intended to be used as an interface for both, but it's JS specific, let's treat it that way.

While this shouldn't technically be a breaking change for the latest minor version, it will very likely break tests, so we will do a minor version bump.

[vasco-santos]

LGTM