Log info about loaded sequencer state

Improve commenting/organisation.

chore(ctb): `LibPosition` documentation, tests, perf

feat(ctb): Alphabet `step` function in `FaultDisputeGame`

Co-authored-by: refcell.eth <abigger87@gmail.com>

gas snapshot

lint

op-service: Update lint command in Makefile.

op-node: Add application specific peer scores for p2p alt-sync

go: update to urfave v2, merge endpoint-monitor and op-heartbeat into main go module

op-program/op-service: Revert retry client

op-node: log shutdown before releasing client waitgroup

* game solver: Add generalized index & tests to position

* Fix tests

* Fix traceIndex function

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Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>