Add CurrentKeyStates and PreviousKeyStates globals and use them across the whole codebase.

right/src/main.h

@@ -4,14 +4,20 @@
 // Includes:
 
     #include "key_matrix.h"
+    #include "slot.h"
+    #include "module.h"
 
 // Macros:
 
     #define KEYBOARD_MATRIX_COLS_NUM 7
     #define KEYBOARD_MATRIX_ROWS_NUM 5
+    #define LEFT_KEYBOARD_HALF_KEY_COUNT (5*7)
+
 
 // Variables:
 
     extern key_matrix_t KeyMatrix;
+    extern uint8_t PreviousKeyStates[SLOT_COUNT][MAX_KEY_COUNT_PER_MODULE];
+    extern uint8_t CurrentKeyStates[SLOT_COUNT][MAX_KEY_COUNT_PER_MODULE];
 
 #endif