Pass additional metadata for SIP

[dennwc]

Add metadata for SIP:

• Human-friendly name for SIP Trunks and Dispatch Rules.
• Custom user metadata for all SIP objects. Metadata set on Dispatch Rules will be inherited by SIP participant created by the rule.
• Add SIP Call ID, for better logging and tracing.
• Methods like EvaluateSIPDispatchRule will now return a Trunk and Dispatch Rule ID used.

There's one potentially breaking change: previously SIP participants had Phone prefix for both participant name and identity. Now identity will have a shorter sip_ prefix. Name will still be the same.

Since some users parse phone number from one of these, we need to notify them about the change and make sure they use name instead of identity. Future change will add cleaner way for getting SIP number for a participant.

[changeset-bot]

🦋 Changeset detected

Latest commit: e553b08

The changes in this PR will be included in the next version bump.

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

💥 An error occurred when fetching the changed packages and changesets in this PR

Some errors occurred when validating the changesets config:
The package or glob expression "github.com/livekit/protocol" specified in the `fixed` option does not match any package in the project. You may have misspelled the package name or provided an invalid glob expression. Note that glob expressions must be defined according to https://www.npmjs.com/package/micromatch.