dotvot/controller_app: add --simulator-init-state option

[aabadie]

This simplify the usage of applications where there's no need anymore to edit the config-sample.toml file

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.95%. Comparing base (c6f5e18) to head (e3a7146).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #240      +/-   ##
==========================================
+ Coverage   79.85%   79.95%   +0.09%     
==========================================
  Files          74       74              
  Lines        7949     7946       -3     
  Branches      543      544       +1     
==========================================
+ Hits         6348     6353       +5     
+ Misses       1598     1591       -7     
+ Partials        3        2       -1     

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