Robots Build Closest First (FULL REWRITE)

Personal construction robots now prioritize building and deconstructing entities closest to the player. This change makes a player twice as fast at building and deconstructing with the exact same equipment setup. This mod is a complete rework of similar existing mods and offers a massive performance increase. A shortcut is available to toggle the mod, and the maximum construction area can be limited in the settings. Should work with other mods adding new personal roboports.