Regroup all Exclusive keyboard in one directory

To reduce clutter in the `keyboards/` directory, this patch moves all
keyboards definitions for Exclusive boards to its own subdirectory.

keyboards/exclusive/e6v2/le/le.c

@@ -0,0 +1,33 @@
+#include "le.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_user(uint8_t usb_led) {
+	if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
+		DDRB |= (1 << 7); 
+		PORTB &= ~(1 << 7);
+	} else {
+		DDRB &= ~(1 << 7); 
+		PORTB &= ~(1 << 7);
+	}
+}
+