Seperate critical perfects separate from regular perfects

[LumpBloom7]

HitResult.Perfect was already used to indicate the critical window, but sentakki stepped it down to a HitResult.Great to avoid awarding more acc. The critical hit flag was stored separately in the JudgementResult.

Now that HitResult.Perfect no longer awards more acc than HitResult.Great, we no longer need to do such shenanigans anymore, and we can directly use HitResult.Perfect.

This also have the bonus of being able to display criticals separately from Perfects on the endgame score card and Judgement chart.