Specifications

I think the following specs are probably necessary:

- Specification for our Root Zone DNS-message-like serialization
- Specification for covenant behavior (although, this is touched on a bit in the whitepaper)
- Specification for a general overview, with bitcoin assumed to be the base protocol

The issue does not identify files, tests, or an entry point. Start by locating existing material on Root Zone DNS-message-like serialization, covenant behavior, and the whitepaper, then define the scope of each requested specification. Done means the three specifications are written and cover the areas listed in the issue.

Written by the indexing model from the issue text.