Diverse changes.
Added ability to name poses

There is now a text field above the save pose button on the skeleton
custom editor. This allows the user to set the filename for the pose
rather than using the default New Pose #

I also added an alternate CreateAsset method in the
ScriptableObjectUtility class with a filename parameter.
Streamlined the IK Helper creation process

Modified the IK Editor script with a function to automatically add a
helper

Added a new Create Helper button to the editor that...
- Creates Helper named in relation to the bone
- Sets it as the IK Components target
- sets the skeleton as a parent
- Positions the helper at the bone
- automatically selects the helper
New Package