[HRtoVRChat] Improve isHRBeat

[200Tigersbloxed]

Currently, isHRBeat is very inaccurate and doesn't update through the network properly as the wait interval time given for the parameter to update (0.1 seconds) is not enough time.

The equation used needs to be improved to accurately guess how often the heart beats from the BPM.

MainMod.cs Line 261, the calculation that's made to guess when the heart is beating.

try { waitTime = 1 / (HR / 60); } catch (Exception) { /*Just a Divide by Zero Exception*/ }

(https://github.com/200Tigersbloxed/UnityMods/blob/main/HRtoVRChat/HRtoVRChat/MainMod.cs#L261)

This number that's guessed also needs to be buffed to give the network enough time to sync the parameter globally, which is the big problem.