Allow deletion of automatic laserpoints

[dlangenk]

Some images may not contain laser points at all, because e.g. the laser was switched off or the laser points might simply be not visible. However, the automatic detection will still try to create laser points automatically, which cannot currently be deleted. Allow deleting these in the image info and the laser point tab.

The problem is also reported by two users in the discussion here.

[mzur]

I agree about deleting the information on the image level. But how should it work for the whole volume? It could be a button "clear automatic LP information" or similar but this would delete the information for all images. We can't handle cases where users want to delete the information on some (many) images and not on others.

[dlangenk]

Volume level would be all or nothing.

[mzur]

👍