Some sensors will occasionally report two identical timestamps in a row.
This leads to the timestamp wrapping calculation to underflow, subtracting
0x80000000 from the timestamp whenever it happens. By adjusting the wrap
test, we can just directly add zero to the timestamp, fixing the underflow.
The dongle appears to stop sending input reports with some combination of rumble patterns, easily reproduced with Forza Horizon 5. We'll disable rumble temporarily until @8BitDo can investigate.
Gathered correct IMU polling rate in wired mode for good gyro synchronization.
Wireless: different models had different amounts of Bluetooth packet loss.
USB_PRODUCT_8BITDO_ULTIMATE2_WIRELESS: Solid 120hz over bluetooth (note: only appears via).
USB_PRODUCT_8BITDO_PRO_2_BT: Lossy - 80-90hz registered.
SB_PRODUCT_8BITDO_SN30_PRO_BT & USB_PRODUCT_8BITDO_SN30_PRO_BT: Very Lossy - 60-90hz registered
Fix IMU timing stamp - simulate the timing stamp from the controller hardware's perspective, as opposed to the receiving computer's perspective. Do this by advancing a time stamp by a fixed rate, based on observation of average rate over bluetooth.
We'll default this off for now, since we don't detect whether the controller is running firmware v1.03 and don't have a fallback for controllers running firmware v1.02 (the out-of-box firmware)
