feat: Add VOLUME_NEW_IMAGE event and Add jumpToSlice and default VOI for volume viewport

[sedghi]

Fix:

• Disabling element should not reset camera
• WindowLevel tool for volume bug in PT scaling

Refactor

• Move various @cornerstonejs/core camera-related utility functions out of their incorrect location in the @cornertsontejs/tools

Add

• Add a new VOLUME_NEW_IMAGE event which publish the imageIndex of the image that has rendered in the volume viewport (any camera view)
• Add the capability in jumpToSlice to jump to a slice in the volumeViewport
• Add default VOI set for the volumes (from metadata or by calculating the min and max of the middle slice)

[JamesAPetts]

Mostly looks good. Some changes required mostly about unsubscribing to events, and cleaning up state.

[JamesAPetts]

One consideration on the element disabled events.

[JamesAPetts]

Thing there is still an event issue, plus some other comments.

[JamesAPetts]

I still think there is a dangling event listener issue here, more in line.

[JamesAPetts]

Mostly there, comments in line.