Allow "Remove without deleting" context menu option

[lgarczyn]

Trying to split a collection into two is a bit of a nightmare.

It's easy enough to add an item X from A to a sibling collection B, but near impossible to actually remove X from A.

Trying to remove X from A works, but deletes X.

If I try to undo changes to X with git, X appears back into A.

I can recreate X from scratch, but then all references to it will be broken.

[brunomikoski]

Added the new Move option

That would show to move items to another collections that can fit this item.

Should be available later this week

[brunomikoski]

Here https://github.com/brunomikoski/ScriptableObjectCollection/releases/tag/v2.3.7