Add camera control toggle to preview edit functions

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

modules/glmv-prev.js

@@ -70,6 +70,14 @@ const setView = new OO.ui.ButtonWidget({
 setView.on('click', writeCameraOrbit)
 setView.setDisabled(true)
 
+const setControl = new OO.ui.ButtonWidget({
+	icon: 'hand',
+	label: 'Toggle camera control',
+	invisibleLabel: true
+})
+setControl.on('click', () => $('model-viewer')[0].toggleAttribute('camera-controls', toggleCameraControl()))
+setControl.setDisabled(true)
+
 //View Limit Controls
 const setMinYaw = new OO.ui.ButtonWidget({
 	label: 'Min'
@@ -145,7 +153,7 @@ const setLims = new OO.ui.PopupButtonWidget({
 setLims.setDisabled(true)
 
 const cameraButtons = new OO.ui.ButtonGroupWidget({
-    items: [ downloadViewerImage, setView, setLims ]
+    items: [ downloadViewerImage, setControl, setView, setLims ]
 })
 
 //Main Menu