feat: add nodeinfo support

[alexgleason]

Description

Adds support for nodeinfo a standard of decentralized social networks. It will allow nostream relays to be indexed on sites like FediDB by adhering to a common format of decentralized networks of the past. It's similar in concept to nip11 but for more general use across different protocols.

Related Issue

I didn't open an issue first, my mistake.

Motivation and Context

It will open doors to greater interoperability between decentralized protocols.

How Has This Been Tested?

I ran it in the local Docker environment and it works.

Types of changes

• [ ] Non-functional change (docs, style, minor refactor)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my code changes.
• [x] All new and existing tests passed.

[coveralls]

Pull Request Test Coverage Report for Build 7266575859

Warning: This coverage report may be inaccurate.

We've detected an issue with your CI configuration that might affect the accuracy of this pull request's coverage report. To ensure accuracy in future PRs, please see these guidelines. A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.05%) to 50.54%

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Totals
Change from base Build 6132344305:	0.05%
Covered Lines:	1192
Relevant Lines:	2305

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💛 - Coveralls

[github-actions[bot]]

:tada: This PR is included in version 1.26.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: