Replace internal type checks in @joystick.js/node with Node built in util.types checkers.

[rglover]

Just stumbled across this, had no idea this was a thing: https://nodejs.org/api/util.html#utiltypes.

Rip out our built-in type checks (they work but add unnecessary weight) and swap with this if there are no obvious issues.

[rglover]

There are some things missing in the node types, so this will require a hybrid approach.

[rglover]

Just decided to stick to a simple type-checker function in the app.