Initial other box branch commit

Add a green box "Big Box"
Add "Roberts Mat" material
Move camera
Change camera color to white
Rename testscene to testscene2

to allow merge with the box branch
Revert "Rename testscene to testscene2"

This reverts commit 9ba7e29038e9b7f328866cc6b707e6fc0674dbe8.
Remove testscene

prepare for merge with the box branch
Merge branch 'The-Other-Box-Branch' into The-Box-Branch