When the statistics window starts up for the first time, it reset values
at that very moment so that stray lagged frames due to OBS' startup
wouldn't be displayed. However, that's really a bad place to reset
those values because the user could want to view the stats window after
a long stream, and having those values reset when he/she views the
window for the first time would sort of make the point of viewing your
stats moot.
Instead, reset the values only when applicable, such as after OBSInit or
when video is reset.
Shows performance stats, and streaming/recording stats, and helps warn
the user when they have less-than-optimal values with coloring on the
values (e.g. yellow when getting low on disk space, red when getting
really low)
