Update blue file to handle array values in ext header, and ignore data beyond extended header stop

[desean1625]

…a that is beyond the extended header stop.

[codecov-io]

Codecov Report

Merging #22 (e598d12) into master (f86c63e) will increase coverage by 0.52%.
The diff coverage is 95.83%.

@@            Coverage Diff             @@
##           master      #22      +/-   ##
==========================================
+ Coverage   67.12%   67.64%   +0.52%     
==========================================
  Files           5        5              
  Lines         435      442       +7     
  Branches       73       74       +1     
==========================================
+ Hits          292      299       +7     
  Misses        126      126              
  Partials       17       17              

Impacted Files	Coverage Δ
src/bluefile.js	88.88% <95.83%> (+0.56%)	⬆️

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