Add prelude module

src/lib.rs

@@ -54,6 +54,8 @@ pub use rust_num::{One, Zero, one, zero};
 
 // Modules
 
+pub mod prelude;
+
 mod macros;
 
 mod array;

src/prelude.rs

@@ -0,0 +1,23 @@
+//! This module contains the most common traits used in `cgmath`. By
+//! glob-importing this module, you can avoid the need to import each trait
+//! individually, while still being selective about what types you import.
+
+pub use angle::Angle;
+
+pub use array::Array;
+
+pub use matrix::Matrix;
+pub use matrix::SquareMatrix;
+
+pub use point::Point;
+
+pub use rotation::Rotation;
+pub use rotation::Rotation2;
+pub use rotation::Rotation3;
+
+pub use transform::Transform;
+pub use transform::Transform2;
+pub use transform::Transform3;
+
+pub use vector::EuclideanVector;
+pub use vector::Vector;