Add Traceable performance calculation support

[Givikap120]

Traceable is a very interesting alternative to Hidden, so I think it's deserves to have pp award.
Also I think it should be moved to DifficultyIncrease category, but it's an another topic.

[stanriders]

I'm not a big fan of how completely arbitrary multipliers were chosen here - I don't think there's nearly enough data to see how TC affects difficulty right now

[apollo-dw]

traceable and hidden are along a very similar wavelength, so I'm OK with treating them the same until we have more data to play with for balancing

[stanriders]

I'm fine with TC being the same as HD for now

[tsunyoku]

good for now, lets get more data to change this in the future though

[smoogipoo]

I saw a review was requested of me, my current status on this is I'd like to add mod-specific generation to diffcalc-sheet-generator first. There's like... 8 scores (lol) in the dumps, that might be interesting to know about.

Will look into it over this weekend.

[smoogipoo]

Let's see how this goes...

!diffcalc
OSU_B=https://github.com/smoogipoo/osu/tree/traceable_pp-tmp
MOD_FILTERS="+TC"

[github-actions]

Target: https://github.com/smoogipoo/osu/tree/traceable_pp-tmp
Spreadsheet: https://docs.google.com/spreadsheets/d/1vM6H6W1oUkgaf4pY5nRpjzx3tNiNvJftjCwXLaAcWIo/edit

[Givikap120]

Target: https://github.com/smoogipoo/osu/tree/traceable_pp-tmp Spreadsheet: https://docs.google.com/spreadsheets/d/1vM6H6W1oUkgaf4pY5nRpjzx3tNiNvJftjCwXLaAcWIo/edit

LOL
maybe cuz it's unranked?

[smoogipoo]

Aware. smoogipoo/diffcalc-sheet-generator#7

[smoogipoo]

!diffcalc
OSU_B=https://github.com/smoogipoo/osu/tree/traceable_pp-tmp
MOD_FILTERS="+TC"

[github-actions]

Target: https://github.com/smoogipoo/osu/tree/traceable_pp-tmp
Spreadsheet: https://docs.google.com/spreadsheets/d/1Fv7rBRGR9MqEHcuSC6lRb-6FDcsQ1wO4mq8IY6aT7EQ/edit

[smoogipoo]

Well, the spreadsheet's empty but I think that's just because it's using top 1000 data. I ran it locally with what I think was the top 10000 data instead: https://docs.google.com/spreadsheets/d/15w_m7iCydC9iQr2wP4rw8oZTKFsKt8yuaqaIy6mf9Do/edit#gid=869359753

It's something I guess ¯\(ツ)/¯

[smoogipoo]

Note that merging this PR will not make this mod ranked.