Add ARM64 support

[hmartinez82]

Looking

[hmartinez82]

@jrfonseca Rebased, and updated the CHECK_STDERR lines

[codecov-commenter]

Codecov Report

Merging #70 (6bf26bf) into master (e53db58) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #70   +/-   ##
=======================================
  Coverage   50.69%   50.69%           
=======================================
  Files          15       15           
  Lines        1943     1943           
  Branches      738      738           
=======================================
  Hits          985      985           
  Misses        737      737           
  Partials      221      221           

Impacted Files	Coverage Δ
src/common/log.cpp	64.41% <ø> (ø)
src/exchndl/exchndl.cpp	74.57% <ø> (ø)

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[jrfonseca]

Thanks!