Autoswitcher

• The autoswitcher is a purchaseable upgrade for any excavator which costs 10000 by default, but this price is configurable as an option.
• It's in the name, but the autoswitcher checks to see if the current tool of the excavator is the preferred tool for the next block its going to mine.
  • For example, if the next block to be mined is dirt, and the current tool is a pickaxe, it will automatically switch the tool to a shovel for the dirt block.

Haven't done the most in-depth testing of this yet, so if you find any issues with it then let me know at @cheezburga on Discord.