Catchpoint: Optimize catchpoint

[nicholasguoalgorand]

Summary

Test Plan

[codecov[bot]]

Codecov Report

Merging #4254 (cfa250d) into master (e4d6d42) will increase coverage by 0.09%. The diff coverage is 72.13%.

@@            Coverage Diff             @@
##           master    #4254      +/-   ##
==========================================
+ Coverage   55.19%   55.28%   +0.09%     
==========================================
  Files         398      398              
  Lines       50165    50263      +98     
==========================================
+ Hits        27689    27789     +100     
- Misses      20159    20162       +3     
+ Partials     2317     2312       -5     

Impacted Files	Coverage Δ
ledger/catchupaccessor.go	62.15% <56.36%> (-0.87%)	:arrow_down:
ledger/accountdb.go	73.02% <75.45%> (+0.44%)	:arrow_up:
ledger/catchpointtracker.go	62.89% <100.00%> (ø)
ledger/catchpointwriter.go	59.13% <100.00%> (+1.47%)	:arrow_up:
ledger/tracker.go	74.78% <0.00%> (ø)
ledger/acctonline.go	79.41% <0.00%> (+0.52%)	:arrow_up:
catchup/service.go	70.12% <0.00%> (+0.74%)	:arrow_up:
data/transactions/verify/txn.go	44.64% <0.00%> (+0.89%)	:arrow_up:
catchup/peerSelector.go	100.00% <0.00%> (+1.04%)	:arrow_up:
... and 3 more

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[algorandskiy]

Catchpoint apply code appears broken feature

~/go/bin-cp-oom/catchpointdump net -l -n betanet.algodev.network -r 19780000 -s [ Done ] Downloaded http://r4.betanet.algodev.network:4160/v1/betanet-v1.0/ledger/brycg [ Done ] Loaded Unable to load catchpoint file into in-memory database : sql: no rows in result set

master

catchpointdump net -l -n betanet.algodev.network -r 19780000 -s [ Done ] Downloaded http://r3.betanet.algodev.network:4160/v1/betanet-v1.0/ledger/brycg [ Done ] Loaded

[algorandskiy]

vet: ledger/catchpointwriter_test.go:361:22: undeclared name: ioutil

Verified catchpoints creation and applying on betanet, all right.