3dtv botenable improved (#1)

* Fixed crash when right eye isn't available

* Enabled swap screens in stereo views.  Fixed window alignment in stereo
views to handle all screen aspect ratios.

* Minor code cleanup and clang fomat updates.

* Minor cleanup of swapped and aspect ratio code

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -163,6 +163,9 @@ void RendererOpenGL::SwapBuffers() {
 void RendererOpenGL::LoadFBToScreenInfo(const GPU::Regs::FramebufferConfig& framebuffer,
                                         ScreenInfo& screen_info, bool right_eye) {
 
+    if (framebuffer.address_right1 == 0 || framebuffer.address_right2 == 0)
+        right_eye = false;
+
     const PAddr framebuffer_addr =
         framebuffer.active_fb == 0
             ? (!right_eye ? framebuffer.address_left1 : framebuffer.address_right1)