Implement key debouncer.

right/src/key_debouncer.h

@@ -0,0 +1,18 @@
+#ifndef __KEY_DEBOUNCER_H__
+#define __KEY_DEBOUNCER_H__
+
+// Includes:
+
+    #include "peripherals/pit.h"
+    #include "fsl_common.h"
+
+// Macros:
+
+    #define KEY_DEBOUNCER_INTERVAL_MSEC 1
+    #define KEY_DEBOUNCER_TIMEOUT_MSEC 10
+
+// Functions:
+
+    void InitKeyDebouncer(void);
+
+#endif