[Feat] CPR Impovements

[Remuchi]

Description

Moved the whole CPR code to the server. There was no need for it to be on shared.
Now CPR automatically repeats itself until the person is alive.
CPR can now be performed without getting you mask off. You just need to lower it down like when trying to eat/drink.
Fixed popups repeating itself x100 times.
Removed cvars and moved everything to CPRTraining component. Why would anyone place them in cvars anyway?..

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Changelog

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• add: CPR now automatically repeats itself.
• add: CPR no longer requires you to take the mask off. You can now simply lower it instead.
• fix: Fixed CPR repeating popups x100 times.

[bruhmogus]

while we're at it we may want to change it so IngestionBlocker can stop cpr instead of masks, this isnsolely for mimes

[VMSolidus]

Thanks a bunch, this was on my TODO list forever and I never got around to it. ADHD is fun.