Create colour module

src/colour/colour_rgb.rs

@@ -4,7 +4,7 @@ use std::ops::{Add, Mul};
 
 #[derive(Copy, Clone, Debug, Default)]
 pub struct ColourRgbF {
-    values: Vec3,
+    pub values: Vec3,
 }
 
 impl ColourRgbF {

src/colour/mod.rs

@@ -0,0 +1,2 @@
+pub mod colour_rgb;
+pub use colour_rgb::{ColourRgbF, ColourRgbU8, NamedColour};