Change osu difficulty attributes to use performance scaling

[Givikap120]

Use performance as a base difficulty attribute to ensure that they all have the same scaling and to avoid unnecessary conversions.
Potentially CalculateDifficultyRating function could also be removed and instead - it would be a part of rescale formula in PerformanceValue.

Relax multipliers change:
Aim: 0.9^3 = 0.729 -> 0.7 (slight nerf)
Flashlight: 0.7^2 = 0.49 -> 0.5 (slight buff)

Autopilot multipliers change:
Speed: 0.5^3 = 0.125 -> 0.125 (no change)
Flashlight: 0.4^2 = 0.16 -> 0.15 (slight nerf)

Touch Device multipliers change:
Aim: x^0.8 -> x^0.8 * 1.3
Flashlight: x^0.8 -> x^0.8 * 1.9
Those multipliers result in almost the same values as currently. Made them accurate because it's a ranked mod and I don't want any out of scope big balance changes.

I haven't adjusted Magnetised and Deflate multipliers. In order to make them match live - you need to raise them to the power of 3 and 2 accordingly, but I don't sure this is needed, as from my testing current values are too harsh (8 star aim drops to less than 5 star on 0.5x, despite spacing being only being decreased in 2 times at most).