[Feature Request] Implement SetSongBeat

[MrThatKid]

Is your feature request related to a problem? Please describe.

Right now, there's a GetSongBeat, and alongside that, NotITG has a SetSongBeat function. It warps both song and chart position by taking a float which is the beat to warp to. The function can allow for going forward and backward in time.

Describe the solution you'd like

So, implementing this function would be nice, as it could allow for truly endless minigames or having a person complete an objective to continue the song. Considering how beat is grabbed, I'd imagine this would be done through the SongPosition object, with a shortcut function in GAMESTATE, possibly (Though, this might be less doable due to split timing?).

I'm not sure how this will work in the case of split timing, as now the chart can deviate in beats based on difficulty.