add template_value to prelude

[ChristopherBiscardi]

Objective

template_value is not in the prelude, but seems useful enough to be. It seems like the main way to include an existing component value in a bsn! declaration since using {transform} and similar expressions doesn't work.

// some Transform, maybe from an `In<Transform>` or other argument.
let transform = Transform::from_xyz(5., 0., 5.);

bsn! {
    #SomeThing
    template_value(transform)
}

Solution

Add template_value to the prelude.