texture preview updates to allow running inline and using mirror copies
texture preview updates to allow running inline and using mirror copies

benvanik/WebGL-Inspector,TheKK/WebGL-Inspector,TheKK/WebGL-Inspector,mcanthony/WebGL-Inspector,benvanik/WebGL-Inspector,benvanik/WebGL-Inspector,mcanthony/WebGL-Inspector,greggman/WebGL-Inspector,TheKK/WebGL-Inspector,cedricpinson/WebGL-Inspector,greggman/WebGL-Inspector,cedricpinson/WebGL-Inspector,cedricpinson/WebGL-Inspector,mcanthony/WebGL-Inspector,greggman/WebGL-Inspector