[Keyboard] add 60% pcb for the smk 2nd switch(with mx mount) (#5928)

* add smk60 pcb

* remove useless keymap

* Update keyboards/smk60/rules.mk

add 60_iso layout

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* fixed 60_iso layout

* update header file macro

keyboards/smk60/config.h

@@ -0,0 +1,53 @@
+/**
+ * config.h
+ *
+ */
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xDEAD
+#define PRODUCT_ID      0x6585
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    astro
+#define PRODUCT         smk 60
+#define DESCRIPTION     60% keyboard for smk switch
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 15
+/* key matrix pins */
+#define MATRIX_ROW_PINS { B0, F0, F1, F5, B2 }
+#define MATRIX_COL_PINS { B4, B5, B6, C6, C7, F6, F7, F4, B1, B3, D0, D1, D2, D3, D5}
+#define UNUSED_PINS
+#define DIODE_DIRECTION COL2ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+//rgb light setting
+#define RGBLED_NUM      4
+#define RGB_DI_PIN      E6
+#define RGBLIGHT_ANIMATIONS
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8