Allow selected custom Double Time speed multipliers to affect which scores you see on the Selected Mods leaderboards

[olazul]

I like to play and set attempts on the Double Time leaderboards on unconventional maps. I use the speed multiplier feature often to set my multiplier to something like 1.3 or 1.4, and I like to see the different scores that people set with the different speed multipliers. But sometimes I want to see specifically the people who placed with a speed multiplier of the standard 1.5, or even higher.

It would be convenient and more interesting to be able to set your speed multiplier to 1.2 and only see scores made with 1.2 or higher, or 1.5 and only see 1.5 or higher.

Additionally, being able to toggle between Selected Mods (inclusive), so with the selected mods in addition to other mods, and Selected Mods (exclusive), only the selected mods, would do wonders with mixing the DT leaderboards and the HDDT leaderboards.

[evilldev]

the most intuitive way would be to make it always show the scores that have the same multiplier as the currently selected rate, so like if you've selected 1.2x it'd show 1.2-1.29x and so on