Added EditorBase as a base class for inspector-based custom editor extensions.
Began work on adding Node Skeleton Structure (NSS) editor.

Signed-off-by: Ken "Minalien" Murray <minalien@gmail.com>
Implemented custom asset utility, created test assets for Node Skeleton System. NSS asset file is basically complete, but editor and behavior have not had behavior implemented.

Signed-off-by: Ken "Minalien" Murray <minalien@gmail.com>
Converted NSSEditor to an inspector-based editor, rather than a custom window.

Signed-off-by: Ken "Minalien" Murray <minalien@gmail.com>
Updated NSSEditor, added preview window overrides. Editor and preview functionality will be implemented after more research on custom editor controls.

Signed-off-by: Ken "Minalien" Murray <minalien@gmail.com>
Node skeleton system is now functional. Nodes can be attached programatically via NodeSkeletonBehavior's AttachToNode method. Note that attachments must be defined as prefab objects - see Scenes/Test/Node Skeleton System/NSSTest.unity for an example.

Signed-off-by: Ken 'Minalien' Murray <minalien@gmail.com>
Merge pull request #7 from Minalien/master

Implemented node system.