Fix affected acct

[countvonzero]

• make sure coinbases are included in affected accounts
• make sure fee payers (calculated from block txs) are included in affected accounts
• make sure tx fees are considered in total balance regardless an event is created

[countvonzero]

the old code misses block number 5817941 that has a fee payment but no event. the new code now finds it

[countvonzero]

original bug where block 5817941 is not recorded for this account.

[codecov-io]

Codecov Report

Merging #47 into develop will increase coverage by 0.39%. The diff coverage is 88.23%.

@@             Coverage Diff             @@
##           develop      #47      +/-   ##
===========================================
+ Coverage    42.04%   42.43%   +0.39%     
===========================================
  Files           18       18              
  Lines         1917     1937      +20     
===========================================
+ Hits           806      822      +16     
- Misses        1045     1047       +2     
- Partials        66       68       +2

Impacted Files	Coverage Δ
store/store.go	72.15% <100%> (+0.17%)	:arrow_up:
store/transfer_processor.go	77.95% <87.09%> (+0.11%)	:arrow_up:

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