(fwRenderOgre): simplify fullscreen toggling

What does this MR do?

• Make fullscreen toggling easier and more efficient.
• Add slots to enable/disable fullscreen on the render service.
• Add an action service to select a screen for fullscreen rendering.
• Add a shortcut to return to windowed mode.
• Fix bundle linking in uiVisuOgre.

How to test it?

• Run OgreViewer
• Click on the fullscreen button
• Select a screen
• Press Escape

Additional tests to run

• Windows
• Linux

Associated Issues/Merge Requests

• Issues

  • Fixes #385 (closed)

• Merge requests

  • depends on !277 (merged)