feat(note-transport): add an initial port of the note transport service

[kkovaacs]

Summary

This PR ports the state of the note transport service from the note transport repository with the following changes:

• The code is using SQLite using the node's SQLite infra.
• The database schema has been changed so that it does not rely on SQLite rowid semantics.
• Implements the gRPC API and semantics from feat: add V1 storage with SQLite and PostgreSQL note-transport-service#157, with the protobuf messages adapted to common messages used on the node APIs.
• Does not (yet) support subscriptions.

Changelog

[[entry]]
scope       = "note-transport"
impact      = "breaking"
description = "An initial implementation of the note transport service without support for subscriptions has been added."

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