Function prepare_bitmap_glyph

fn prepare_bitmap_glyph<'a>(
    bitmaps: &BitmapStrikes<'_>,
    glyph: Glyph,
    pixmap: Pixmap,
    font_size: f32,
    upem: f32,
    initial_transform: Affine,
    bitmap_glyph: BitmapGlyph<'a>,
) -> (GlyphType<'a>, Affine)