Add ns record gateway handling

[nitro-neal]

When resolving a did dht this change allows it to look at the ns records and find the authoritative gateways.

It will try to use these gateways, and accumulate errors if it fails. It will keep trying until all gateway uris are exhausted and then will return the accumulated errors.

1. Do a resolution with default gateway to get dns records for did
2. If there are NS records, get all of them into an array of endpoints
3. Loop over all endpoints, if you successfully get dns records for did from endpoint, return and continue to resolve did, otherwise try the next endpoint

Reference
https://did-dht.com/#resolution-gateways

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[github-actions]

TBDocs Report

🛑 Errors: 0
⚠️ Warnings: 1

@web5/api

• Project entry file: packages/api/src/index.ts

📄 File: ./packages/api/src/web-features.ts
⚠️ extractor:typedoc:missing-docs: installNetworkingFeatures (CallSignature) does not have any documentation.

@web5/crypto

• Project entry file: packages/crypto/src/index.ts

@web5/crypto-aws-kms

• Project entry file: packages/crypto-aws-kms/src/index.ts

@web5/dids

• Project entry file: packages/dids/src/index.ts

@web5/credentials

• Project entry file: packages/credentials/src/index.ts

---

TBDocs Report Updated at 2024-05-21T19:10:02Z 6313e60

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 52.23881% with 32 lines in your changes are missing coverage. Please review.

Project coverage is 90.78%. Comparing base (eef9396) to head (6a153e4).
Report is 48 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #576      +/-   ##
==========================================
- Coverage   91.10%   90.78%   -0.32%     
==========================================
  Files         116      118       +2     
  Lines       29664    29809     +145     
  Branches     2199     2219      +20     
==========================================
+ Hits        27024    27062      +38     
- Misses       2605     2711     +106     
- Partials       35       36       +1     

Components	Coverage Δ
agent	80.86% <ø> (ø)
api	94.15% <ø> (-3.64%)	⬇️
common	98.68% <ø> (ø)
credentials	95.26% <ø> (ø)
crypto	93.81% <ø> (ø)
dids	97.22% <52.23%> (-0.48%)	⬇️
identity-agent	96.70% <ø> (ø)
crypto-aws-kms	100.00% <ø> (ø)
proxy-agent	96.70% <ø> (ø)
user-agent	96.70% <ø> (ø)

[decentralgabe]

does this work with the . / FQDN syntax?

[nitro-neal]

yes, it takes out the trailing . and the documentation is updated .

The resolutionGatewayUris will be the value in the ns minus the last .

[decentralgabe]

approving if the condition I mentioned as test coverage

[thehenrytsai]

Looks legit, only missing test for the code added.

Also added a small refactoring PR to merge that addresses a few small issues: #608

[nitro-neal]

I will wait to merge until vector 3 is in, and then I will resolve conflict and finish testing missing lines