Break HTTP routes into multiple servers

[joshklop]

For access control purposes.

[joshklop]

This is probably easiest to review all at once, rather than commit-by-commit. We can squash merge.

[codecov]

Codecov Report

Patch coverage: 91.78% and project coverage change: +0.06% 🎉

Comparison is base (b0bfb09) 73.81% compared to head (6cca12a) 73.87%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1087      +/-   ##
==========================================
+ Coverage   73.81%   73.87%   +0.06%     
==========================================
  Files          66       66              
  Lines        7255     7270      +15     
==========================================
+ Hits         5355     5371      +16     
- Misses       1449     1453       +4     
+ Partials      451      446       -5     

Files Changed	Coverage Δ
node/node.go	46.61% <88.46%> (+15.58%)	⬆️
node/http.go	92.26% <92.50%> (ø)
cmd/juno/juno.go	57.31% <100.00%> (+3.98%)	⬆️

... and 4 files with indirect coverage changes

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[omerfirmak]

We can put Http & ws rpc on the same port, WDYT?

[joshklop]

I'll figure out why the codecov is low and fix the linting errors. I may also change default port numbers to align with what is in the current released version to maximize compatibility.

[joshklop]

Rebased and made the adjustments mentioned in my last message. If you don't mind taking another quick look @omerfirmak, I would really appreciate it. I'm fine with merging the http and websocket servers if you think that's a good idea. I kept them separate to follow geth's lead. Let me know if you think that's worth the effort.

Note that all services that require ports are disabled by default now. Enabling them all on their default ports would look something like:

juno --http --ws --metrics --pprof --grpc