Function build_curve_network_ui 

pub fn build_curve_network_ui(
    ui: &mut Ui,
    num_nodes: usize,
    num_edges: usize,
    radius: &mut f32,
    radius_is_relative: &mut bool,
    color: &mut [f32; 3],
    render_mode: &mut u32,
    material: &mut String,
    available_materials: &[&str],
) -> bool

Builds UI for a curve network.