VBT Update 1/22/18

I've added serialization to the behavior tree. You can see a gif of saving and loading a tree out below. (Click to view full size)

I've opted to store the tree in a space separated value sheet with key value pairs, to keep the file size small. Other contenders are XML and JSON, but SSVs are easy to parse and there are no JSON parsing libraries included with Unity, and the overhead with XML doesn't seem worth it here.

Next time I'll be working on having the agent correctly run through the tree in-game, and perform what actions are specified. The "brains" of the operation. This will be tricky so I'll start with running through the tree each update loop, but later state-saving can be added to increase efficiency.