Add the file for ng+ mappings, add the entries for TR1.

Update ng_plus.json

Add ng+ file as resource

Parse ng+ json file

Start on swapper

Create replacement items

Add swap toggle to UI

Items changed approach

Probably going to revert this

Create NG+ items by default

Exclude ng+ from items window

Part of items window selection

Rendering and picking
Pick needs to use entities
Picking by item
Item selection

Old approach