Blob converter for ParameterBindingData support

[liliankasem]

Issue describing the changes in this PR

Related epic: #1081

Part of the work to support SDK-type bindings for out-of-proc workers is to write a BlobConverter that can handle the new ModelBindingData type. The ModelBindingData type contains information that we can use to hydrate the client, so the job of the converter here is to parse the content provided to extract the relevant information, and use that to create the requested type (requested type being what the user is binding to).

• ModelBindingData was added to the protobuf and brought into this repo via this PR
• We updated the SDK to use the ModelBindingData in this PR. The SDK will check to see if a given extension supports deferred binding, and if it does, it will set the flag so that the host uses this ModelBindingData type for each function it is supported

The epic has a list of all the PRs related to this if you'd like to follow the progress of how ModelBindingData came to be.

Pull request checklist

• My changes do not require documentation changes
  • Otherwise: Documentation issue linked to PR https://github.com/MicrosoftDocs/azure-docs-pr/pull/225452
• My changes should not be added to the release notes for the next release
  • Otherwise: I've added my notes to release_notes.md
• My changes do not need to be backported to a previous version
  • Otherwise: Backport tracked by issue/PR #issue_or_pr
• I have added all required tests (Unit tests, E2E tests)
  • Working on this

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