Rebaseline, re-enable integration testing in CI, and fix lua syntax errors

[chapman39]

Corresponding serac_test PR: https://github.com/LLNL/serac_tests/pull/20

Some changes are from https://github.com/LLNL/serac/pull/1058

Fixes #1046

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.58%. Comparing base (f7323cc) to head (c6c1193).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1067   +/-   ##
========================================
  Coverage    90.58%   90.58%           
========================================
  Files          160      160           
  Lines        14331    14331           
========================================
  Hits         12982    12982           
  Misses        1349     1349           

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