Changes to the acute angle and aim multiplier for difficulty calculation

[TextAdventurer12]

This replaces the curve for scaling the acute angle bonus with bpm, and no longer caps at 400bpm 1/2. The new curve is also generally less between 300 and 400bpm 1/2, as can be seen here. There is also an increase to the aim multiplier

Values when combined with the other difficulty calculation changes (#28843 + #28844 + #28845 + #28846) can be seen here (onion access only)

[smoogipoo]

!diffcalc

[github-actions[bot]]

Target: https://github.com/ppy/osu/pull/28845 Spreadsheet: https://docs.google.com/spreadsheets/d/1Xpud5q024TBBNJT1nIFkjdc7sHv7UPa4RtLNXys6-e4/edit

[TextAdventurer12]

moved back to draft while I work through some feedback

[stanriders]

#30902