[Keyboard] LFK78 refactor (#7835)

* Change include guards to pragma once

* Clean up default keymaps

* Remove some magic numbers and use GPIO macros

* Clean up keyboard.[ch]

* Tidy up info.json and readme

* Align config.h with template

* Split up revision code into subfolders

* rev C-H has no audio, apparently

* Change revc_h to revc and document differences

* Turn off Audio on revb for now, for Travis' sake

* Split info.json into revision folders

* Clean up default keymaps some more

keyboards/lfkeyboards/lfk78/revb/config.h

@@ -0,0 +1,21 @@
+#pragma once
+
+/* key matrix size */
+#define MATRIX_ROWS 10
+#define MATRIX_COLS 8
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, F0, F1, F4, F5, F6 }
+#define MATRIX_COL_PINS { E6, F7, D2, D3, D4, D5, D6, D7 }
+#define UNUSED_PINS
+
+#define RGBLED_NUM 31