[FIX] Improve gii file handling

[emdupre]

Changes proposed in this pull request:

• Hot fix for gii file handling
• Update for spatial artifacts in gii file

[codecov]

Codecov Report

Merging #74 into master will decrease coverage by <.01%.
The diff coverage is 5%.

@@            Coverage Diff             @@
##           master      #74      +/-   ##
==========================================
- Coverage   28.04%   28.03%   -0.01%     
==========================================
  Files          25       25              
  Lines        1373     1377       +4     
==========================================
+ Hits          385      386       +1     
- Misses        988      991       +3

Impacted Files	Coverage Δ
tedana/utils/utils.py	78.26% <0%> (ø)	⬆️
tedana/selection/select_comps.py	0% <0%> (ø)	⬆️
tedana/info.py	100% <100%> (ø)	⬆️

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[emdupre]

gifti files still need spatial information for proper functioning and are therefore currently unsupported in the existing pipeline. This patch improves individual file handling to easier integrate gifti spatial information in the future, as described in #34