implemented keymap struct

src/lib.rs

@@ -1,7 +1,9 @@
 mod hid_wrapper;
+mod rgb;
 mod rgb_controller;
 
 pub use hid_wrapper::HidWrapperError;
+pub use rgb::Rgb;
 pub use rgb_controller::controller::RGBController;
 pub use rgb_controller::effects::Effects;
-pub use rgb_controller::keymap::KeymapKeys;
+pub use rgb_controller::keymap::{Keymap, KeymapKeys};