Lego Stopwatch

Simple and versatile stopwatch library that can be used for many different things in games.

I include the base Stopwatch datum that basically acts like any normal stopwatch would - counting from 0 upward endlessly, using world.time; a Countdown datum that also acts like another feature normal stopwatches would have - counting down from a starting time that is set by the user; and a Playtime datum that's meant to track how long a player has played during their current session and adding it to their total playtime.