opnode: p2p RPC, fix static-peers

[protolambda]

Implement:

• peerstore dump RPC method (with filter for only getting connected peers)
• RPC methods to protect/ban/dial etc. if we ever need to test or intervene a running node
• Fix & test static-peering
• Add logging for connections
• Go client bindings for P2P RPC namespace (opp2p)
• Refactor p2p to bundle the p2p components into a p2p node, to not bloat the rollup-node main struct as much, and better test the p2p stack in isolation

[codecov-commenter]

Codecov Report

Merging #433 (a8243cb) into main (b6dd9da) will decrease coverage by 0.28%. The diff coverage is 67.54%.

@@            Coverage Diff             @@
##             main     #433      +/-   ##
==========================================
- Coverage   53.23%   52.95%   -0.29%     
==========================================
  Files          62       67       +5     
  Lines        6481     7063     +582     
==========================================
+ Hits         3450     3740     +290     
- Misses       2592     2838     +246     
- Partials      439      485      +46     

Impacted Files	Coverage Δ
opnode/flags/p2p_flags.go	100.00% <ø> (ø)
opnode/p2p/config.go	7.83% <ø> (ø)
opnode/p2p/gossip.go	67.01% <ø> (+0.69%)	:arrow_up:
opnode/node/node.go	62.24% <44.44%> (+2.24%)	:arrow_up:
opnode/p2p/node.go	54.66% <54.66%> (ø)
opnode/p2p/rpc_server.go	61.65% <61.65%> (ø)
opnode/p2p/host.go	66.92% <71.87%> (+0.94%)	:arrow_up:
opnode/p2p/notifications.go	87.50% <87.50%> (ø)
opnode/node/server.go	78.18% <93.33%> (+3.18%)	:arrow_up:
opnode/p2p/prepared.go	50.00% <100.00%> (ø)
... and 14 more

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