DEV: main development repo should moved to GL! Discussion please on discord.
add imgui support to the assetviewer
small fix to make the basic assetViewer work again
commit for transfer [noci]
add new scene to asset viewer showing shiny PBR materials
revive assetViewer (works basic)
BLD: global deactivate OIS and CEGUI in favour of a replacment with imgui. Compiles but does not work .. still needs heavy rework.
merge from ogre-13