State Proof Recoverability: state proof verification tracking

[almog-t]

Summary

Created a tracker to track the data required for state proof verification, until such a time as the expected state proof is agreed upon. Includes unit tests and a sanity ledger test.

[codecov[bot]]

Codecov Report

Merging #4570 (32111e2) into feature/stateproofs-recoverability (4e4ee2c) will increase coverage by 0.04%. The diff coverage is 85.16%.

@@                          Coverage Diff                           @@
##           feature/stateproofs-recoverability    #4570      +/-   ##
======================================================================
+ Coverage                               54.17%   54.21%   +0.04%     
======================================================================
  Files                                     401      402       +1     
  Lines                                   51642    51790     +148     
======================================================================
+ Hits                                    27978    28079     +101     
- Misses                                  21319    21351      +32     
- Partials                                 2345     2360      +15     

Impacted Files	Coverage Δ
ledger/tracker.go	74.04% <ø> (-5.54%)	:arrow_down:
ledger/trackerdb.go	46.66% <44.44%> (-0.08%)	:arrow_down:
ledger/ledger.go	65.82% <72.72%> (-0.53%)	:arrow_down:
ledger/accountdb.go	72.95% <78.37%> (-0.08%)	:arrow_down:
ledger/stateproofverificationtracker.go	92.85% <92.85%> (ø)
ledger/roundlru.go	90.56% <0.00%> (-5.67%)	:arrow_down:
catchup/service.go	68.39% <0.00%> (-0.99%)	:arrow_down:
data/transactions/verify/txn.go	43.75% <0.00%> (-0.90%)	:arrow_down:
ledger/acctonline.go	78.12% <0.00%> (-0.53%)	:arrow_down:
... and 3 more

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