Adding availability zones

[PatMyron]

aws ec2 describe-regions | pcregrep -o1 '"RegionName": "(.*)"' | xargs -L1 bash -c 'aws ec2 describe-availability-zones --region $0 | grep "ZoneName"'

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[codecov]

Codecov Report

Merging #1021 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1021   +/-   ##
=======================================
  Coverage   86.83%   86.83%           
=======================================
  Files         133      133           
  Lines        7878     7878           
  Branches     1939     1939           
=======================================
  Hits         6841     6841           
  Misses        639      639           
  Partials      398      398

Impacted Files	Coverage Δ
src/cfnlint/helpers.py	85.03% <ø> (ø)	⬆️

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