Rename & Delete Items

[SidneyGuenther]

Goal

Enable the Artist to rename and delete items via the TRUCTURE UI --> BUT we need to make sure that this is as secure as possible.

Motivation

Currently, deleting and especially renaming is a pain in the ass.

To Do

• implement the ability to rename items
• implement a confirmation dialog for renaming items that informs the artist about the issues renaming an item can cause (breaks references. proxies, etc.)
• implement the ability to delete items
• implement 2 confirmation dialogs that ask the Artist if he's 100% sure about it