[Keyboard] Add the E6.5 keyboard (#6693)

The E6.5 is the new 65% keyboard made by Exclusive.
This changeset adds its PCB to QMK, including all the bottom row
variants and iso/ansi/split BS layouts.

keyboards/exclusive/e65/e65.c

@@ -0,0 +1,32 @@
+/* Copyright 2019 Brice Figureau
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "e65.h"
+
+void matrix_init_kb(void) {
+    setPinOutput(B6);
+    matrix_init_user();
+}
+
+void led_set_kb(uint8_t usb_led) {
+    if (IS_LED_ON(usb_led, USB_LED_CAPS_LOCK)) {
+        writePinHigh(B6);
+    } else {
+        writePinLow(B6);
+    }
+
+    led_set_user(usb_led);
+}