Maya Plugin - Create a Shape Node for Bundles

[david-cattermole]

To help users see a Bundle node in the viewport (and outliner), we should create a Maya shape node for users to see.

The icon should match the shelf button example of a Bundle (a green diagonal cross).

The viewport icon should always have the same screen-space. This viewport display should work on Linux and Windows, using the Viewport 2.0 API. If it's easy to support Viewport 1.0, we should do so, if not we abandon it or possibly revert to a default locator in that case.

This is similar to #21.

[david-cattermole]

It may be helpful to use Camera Inferno as an example for creating the shape node draw code, even if we eventually plan to use a Maya SubScene Draw with a MUIDrawManager.

https://github.com/david-cattermole/cameraInferno-maya

[david-cattermole]

This has been started on the "develop" branch with some code merged in from Patcha.

Full integration is still on-going and will be added into v0.4.0.

[david-cattermole]

Closing. This has been released in v0.4.0.