uefi-raw: add Tcpv4 protocol type definitions

[JayKickliter]

This is PR 1 of 2 adding TCP functionality to uefi-rs and is a replacement for #1779. I removed the high-level uefi crate additions and will open a separate PR for them.

Checklist

• Sensible git history (for example, squash "typo" or "fix" commits). See the Rewriting History guide for help.
• Update the changelog (if necessary)

[phip1611]

Generally looks very good, thanks for working on this! I left some minor remarks.

[phip1611]

The typos CI step should be fixed when you add "ANDed" to extend-ignore-identifiers-re in .typos.toml