Browser Controller iOS Update
- separated browsercontroller into WhiteboardUpload and WhiteboardRendererController
- create whiteboard for mac and windows
- added win whiteboard to mainscene
- set whiteboardcontroller references in whiteboarduipanel
Since the current PDF Renderer is not supporte on iOS, a separate Whiteboard_MAC was created. The Whiteboard_WIN has to be replaced with the Whiteboard_MAC in the Mainscene. Both whiteboards need to have the same mediaID so that uploaded images on an iOS Client can be viewed on the same whiteboard in the Windows Client.