feat(routing/http): delegated IPNS server and client, IPIP 379

[hacdias]

This implements the Boxo client and server for ipfs/specs#379.

• Requires feat(ipns): refactored IPNS package with lean records #339
• Depends on fix: fix: basicnode.NewInt returns pointer (like others) ipld/go-ipld-prime#525
• Requires release of https://github.com/ipld/go-ipld-prime (@rvagg)

[codecov]

Codecov Report

Merging #333 (59d1001) into main (aa7add0) will increase coverage by 0.07%.
The diff coverage is 51.90%.

@@            Coverage Diff             @@
##             main     #333      +/-   ##
==========================================
+ Coverage   49.74%   49.82%   +0.07%     
==========================================
  Files         249      249              
  Lines       29994    30125     +131     
==========================================
+ Hits        14920    15009      +89     
- Misses      13645    13671      +26     
- Partials     1429     1445      +16     

Files Changed	Coverage Δ
routing/http/server/server.go	60.91% <49.35%> (-4.31%)	⬇️
routing/http/client/client.go	72.98% <55.55%> (-4.86%)	⬇️

... and 10 files with indirect coverage changes

[hacdias]

Note that this PR will have to be rebased if #339 is merged first.

[hacdias]

I will address the feedback once we have the IPNS PRs complete then (or I might rebase it earlier if I have time).

[hacdias]

I rebased this on top of the IPNS PR to make the required changes. This also depends on a fix of go-ipld-prime, otherwise the mocking tests will fail due to an inconsistent behaviour between creating new integer nodes and decoding integer nodes: ipld/go-ipld-prime#525.

Gateway sharness will fail until IPNS PR is merged.

[lidel]

Thanks for fixing tests, small nits below.

[rvagg]

ipld/go-ipld-prime#534

will get this out tomorrow unless something gets in the way

[hacdias]

@lidel we now have a new release of go-ipld-prime (thanks @rvagg) so I think this is ready for final review.

[lidel]

Thank you @hacdias, I think its good enough to merge and iterate further in #422 + ipfs/kubo#9877.

ps. on windows TestClientOverMax is flaky, i've re-run it.