Restructure the codebase across more files.

right/usb_interface_mouse.h

@@ -0,0 +1,21 @@
+#ifndef __USB_DEVICE_HID_MOUSE_H__
+#define __USB_DEVICE_HID_MOUSE_H__
+
+// Macros:
+
+    #define USB_MOUSE_REPORT_LENGTH (0x04U)
+
+// Typedefs:
+
+    typedef struct usb_device_hid_mouse_struct {
+        uint8_t buffer[USB_MOUSE_REPORT_LENGTH];
+        uint8_t idleRate;
+    } usb_device_hid_mouse_struct_t;
+
+// Functions:
+
+    extern usb_status_t UsbMouseCallback(class_handle_t handle, uint32_t event, void *param);
+    extern usb_status_t UsbMouseSetConfiguration(class_handle_t handle, uint8_t configuration);
+    extern usb_status_t UsbMouseSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting);
+
+#endif