[FIX] Eliminate duplicate lines in logs

[tsalo]

Closes #638.

Changes proposed in this pull request:

• Add a report argument to relevant functions so that we can toggle whether a given function will add to the report logger. In cases where the same function is called multiple times, we turn the report off.

[codecov]

Codecov Report

Merging #645 (fa6e604) into master (5369e1d) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #645      +/-   ##
==========================================
+ Coverage   93.56%   93.59%   +0.02%     
==========================================
  Files          26       26              
  Lines        1975     1984       +9     
==========================================
+ Hits         1848     1857       +9     
  Misses        127      127              

Impacted Files	Coverage Δ
tedana/combine.py	91.17% <100.00%> (+0.85%)	⬆️
tedana/decay.py	95.58% <100.00%> (+0.09%)	⬆️

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[jbteves]

I'm approving because I think this works and I can't think of anything better, but we'll have to be careful about maintaining those blocks of report being True and False. I think it could easily trip us up if we're not careful. But as I said, this still looks good to me!
Thanks @tsalo !

[eurunuela]

I'm not sure this is the best solution but I get that right now it's a working solution. We should still think of a more elegant way to deal with the duplicate logs.