Build 3

Updates:

Box selecting
Fixed bug where snap indicators didn't disappear on changing tool
Added coordinates display
Added UI to show names of existing ships for saving and loading
Allow deleting ships from save and load screens
Handles overwriting files and opening nonexistent files better (popup)
Copying and pasting

Known Bugs:

Beams can be placed inside each other
Beams can be moved into each other

Planned Features:

Improve UI
Improve centerpoint for rotation of selected gameobjects
Add snapping for moving
Make chossing an attachmentpoint better (skip essentially identical ones)
Improve multiple keys to prevent X firing on Y-X
Add support for placing various objects (thrusters, chairs, etc)