Function create_colr_glyph 

fn create_colr_glyph<'a>(
    font_ref: &'a FontRef<'a>,
    metrics: &ColrMetrics,
    color_glyph: ColorGlyph<'a>,
    normalized_coords: &'a [NormalizedCoord],
    font_info: FontInfo,
) -> GlyphType<'a>

Create COLR glyph data with intermediate texture parameters.

This uses pre-calculated metrics to create a GlyphType::Colr with all necessary data for rendering to an intermediate texture.