Refactor and improve component API with f32 infinities

examples/camera_scaling_mode.rs

@@ -16,10 +16,10 @@ fn setup(mut commands: Commands) {
     commands.spawn((
         cam,
         PanCam {
-            min_x: Some(-10.),
-            max_x: Some(10.),
-            min_y: Some(-10.),
-            max_y: Some(10.0),
+            min_x: -10.,
+            max_x: 10.,
+            min_y: -10.,
+            max_y: 10.0,
             ..default()
         },
     ));

examples/clamped_borders.rs

@@ -14,19 +14,19 @@ fn setup(mut commands: Commands) {
         Camera2dBundle::default(),
         PanCam {
             // prevent the camera from zooming too far out
-            max_scale: Some(40.),
+            max_scale: 40.,
             // prevent the camera from zooming too far in
             min_scale: 0.5,
             // prevent the camera from panning or zooming past x -750. -750 was chosen to display both the edges of the
             // sample image and some boundary space beyond it
-            min_x: Some(-750.),
+            min_x: -750.,
             // prevent the camera from panning or zooming past x 1750. 1750 was chosen to show an asymmetric boundary
             // window with more space on the right than the left
-            max_x: Some(1750.),
+            max_x: 1750.,
             // prevent the camera from panning or zooming past y -750. value chosen for same reason as above
-            min_y: Some(-750.),
+            min_y: -750.,
             // prevent the camera from panning or zooming past y 1750. value chosen for same reason as above
-            max_y: Some(1750.),
+            max_y: 1750.,
             ..default()
         },
     ));

examples/limits.rs

@@ -14,7 +14,7 @@ fn setup(mut commands: Commands) {
         Camera2dBundle::default(),
         PanCam {
             // Set max scale in order to prevent the camera from zooming too far out
-            max_scale: Some(40.),
+            max_scale: 40.,
             // Set min scale in order to prevent the camera from zooming too far in
             min_scale: 1.,
             ..default()