Camera view selection

Added toggle to select the preferred camera view between "auto", "standard", "wide", and "driver".

selfdrive/ui/ui.h

@@ -181,6 +181,8 @@ typedef struct UIScene {
   float lane_width_left;
   float lane_width_right;
 
+  int camera_view;
+
   QPolygonF track_adjacent_vertices[6];
 
 } UIScene;