Alignment

I've taken a stab at creating an "align" tool inside of the editor. Again, to make sure I am exposing everything I need to for outside developers, I wrote this as a plugin. I need better support for adding toolbars and stuff but it'll get there.

This will align any object that exposes the appropriate properties. I should probably throw up a warning or something when an object is selected that can't be aligned using the current settings. But for the most part, you can grab a scene node and either align it based on location or on bounding box. Bounding box is the most useful since the location can be arbitrary depending on what is attached to it. Bounding box allows you to align two objects to be along the same axis on the Z or to even be right next to each other except along the x-axis. It's all up to you.

I've stolen the icons from Maya so they'll have to be replaced sometime. But all the features work. It'll make things a lot easier to lay down in an organized fashion. I think I will need to implement grid-snapping soon as well with customized values so you can create bigger/smaller grids. This will be a must-have feature when we get to lay down the terrain tiles.