Add an option to not count non-penalty submissions as a submission.

[johnbrvc]

Is your feature request related to a problem?
Some CCS's (DOMjudge, for example), do not count non-penalty submissions (eg. CE), in the number of submissions for a problem.
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Feature Description:
Add an option that causes any submission that receives a judgment with a penalty time of 0 to not be counted as a submission for the problem. Ex. If a team submits 100 Compile-errors, they currently show as having 100 submissions (none of which will cause a penalty). This can lead to confusing scoreboards, and, more importantly, scoreboard comparison issues with a primary CCS.
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Have you considered other ways to accomplish the same thing?
Manually evaluate any scoreboard comparison differences.
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Do you have any specific suggestions for how your feature would be implemented in PC^2? If so, please describe.
Add an option on the Settings tab (and also in the system.pc2.yaml files) to activate this option.
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Additional context:
Noticed at NAC2024 by DOMjudge team.
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