Added render::Environment and an instance of it owned by RenderSystem. RenderSystem now deletes subsystems in reverse order compared to construction, to ensure appropriate dependency order.
Added a new asset type "texture.reflect.(map-id)" for specifying which reflection cube maps to use in which map.
Renderer|Client: Environment cube map textures
Added render::Environment and an instance of it owned by RenderSystem.
RenderSystem now deletes subsystems in reverse order compared to
construction, to ensure appropriate dependency order.
Added a new asset type "texture.reflect.(map-id)" for specifying which
reflection cube maps to use in which map.
IssueID #2105