Starts the timer with the specified name.
If you start and stop the same timer multiple times, the measured intervals will be accumulated.
$name: The name of the timer.
public static function start($name) {
static::$timers[$name]['start'] = microtime(TRUE);
static::$timers[$name]['count'] = isset(static::$timers[$name]['count']) ? ++static::$timers[$name]['count'] : 1;
}