p2p: http catchpoints support

[algorandskiy]

Summary

P2P HTTP support for ledger service:

1. Ledger fetcher understands p2p URL now
2. P2pNetwork implements GetHTTPRequestConnection:
   • A new StreamChainingHost wrapper for libp2p.host.Host allows multiple stream handlers for the same protocol.ID
   • Main use is to have an extra handler for "/http/1.1" in order to track streams with HTTP protocol inside.
3. Ledger Service worked out of the box

Test Plan

Added unit test for fetcher, service and new p2p stream wrapper.

[codecov]

Codecov Report

Attention: 29 lines in your changes are missing coverage. Please review.

Comparison is base (a8e2254) 55.98% compared to head (f2178ae) 56.06%.

Files	Patch %	Lines
network/p2p/streams.go	0.00%	13 Missing ⚠️
network/p2pNetwork.go	45.45%	4 Missing and 2 partials ⚠️
network/hybridNetwork.go	0.00%	5 Missing ⚠️
network/p2p/p2p.go	86.36%	3 Missing ⚠️
catchup/ledgerFetcher.go	88.88%	0 Missing and 1 partial ⚠️
network/wsNetwork.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           feature/p2p    #5924      +/-   ##
===============================================
+ Coverage        55.98%   56.06%   +0.07%     
===============================================
  Files              482      482              
  Lines            68057    68108      +51     
===============================================
+ Hits             38103    38186      +83     
+ Misses           27347    27318      -29     
+ Partials          2607     2604       -3     

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[gmalouf]

Asked a few questions, okay with approving after get a response to those.