Make 'AreaLightData.twoSided' a bool

Assets/ScriptableRenderLoop/HDRenderLoop/HDRenderLoop.cs

                     // TODO: add AreaShapeType.Line support for small widths.
                     lightData.shapeType = AreaShapeType.Rectangle;
                     lightData.size = new Vector2(additionalData.areaLightLength, additionalData.areaLightWidth);
-                    lightData.twoSided = additionalData.isDoubleSided ? 1.0f : 0.0f;
+                    lightData.twoSided = additionalData.isDoubleSided;
 
                     lightData.positionWS = light.light.transform.position;
                     lightData.forward = light.light.transform.forward; // Note: Light direction is oriented backward (-Z)

Assets/ScriptableRenderLoop/HDRenderLoop/Lighting/LightDefinition.cs

         public float shadowDimmer;
 
         public Vector2 size;
-        public float twoSided;
+        public bool twoSided;
         public float unused;
     };
 

Assets/ScriptableRenderLoop/HDRenderLoop/Lighting/LightDefinition.cs.hlsl

 	float3 right;
 	float shadowDimmer;
 	float2 size;
-	float twoSided;
+	bool twoSided;
 	float unused;
 };
 
 {
 	return value.size;
 }
-float GetTwoSided(AreaLightData value)
+bool GetTwoSided(AreaLightData value)
 {
 	return value.twoSided;
 }