Simulation Fixes

[alexanderbez]

• Fix the broken test_sim_nondeterminism make target (I'm scared to know how long this was broken for)
• Fix TestAppStateDeterminism to use CLI input params
• Fix SimulateFromSeed to actually panic (returns non-zero exit code)
• Some general cleanup

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• Targeted PR against correct branch (see CONTRIBUTING.md)

• Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• Wrote tests

• Updated relevant documentation (docs/)

• Added a relevant changelog entry: clog add [section] [-t <tag>] [-m <msg>]

• Re-reviewed Files changed in the github PR explorer

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For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #4861 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4861      +/-   ##
==========================================
+ Coverage    54.3%   54.31%   +0.01%     
==========================================
  Files         271      271              
  Lines       17344    17344              
==========================================
+ Hits         9418     9420       +2     
+ Misses       7228     7226       -2     
  Partials      698      698

[fedekunze]

ACK. Pending bugfix pending entry