Add _33 Keyboard folder (#8543)

* Add _33 Keyboard folder

* Correcting naming convetions and other code convetions

* Removed extra spaces

* fixed layout callbacks to new lower-case versions

* Remove tapping_term, fix RGB pin define. Added blank readme-to be updated.

* initial addition of the readme.md

* Update readme.md for hardware/pcb availability info

* Adding keymap readme

* Info.json added

* Incorporate Drashna's recommended changes

keyboards/underscore33/config.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x6A50
+#define DEVICE_VER 0x0001
+#define MANUFACTURER tominabox1
+#define PRODUCT underscore33
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 10
+
+/*
+ * 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 { F5, F6, C6, D0 }
+#define MATRIX_COL_PINS { B4, B5, D5, F7, B1, F4, B3, D7, B0, B2 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION ROW2COL
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* #define RGB_DI_PIN B6
+   #define RGBLED_NUM 1  */