Function prepare_depth_of_field_view_bind_group_layouts 

pub fn prepare_depth_of_field_view_bind_group_layouts(
    commands: Commands<'_, '_>,
    view_targets: Query<'_, '_, (Entity, &DepthOfField, &Msaa)>,
    render_device: Res<'_, RenderDevice>,
)

Creates the bind group layouts for the depth of field effect that are specific to each view.