[Keyboard] XD68 65% ATMega32U4 based (#7395)

* First working draft

* Updated readme.md

* Fixed url

* Typo fix

* RGB + Backlight working

* Fixed matrix for ISO NUHS

* ISO matrix working

* Adding ANSI default layout

* First release commit

* Removed reference to deprecated layout

* Changes from PR #7395 review

* Additional changes as requested for PR #7395

* Additional changes from @noroadsleft review

* Replaced ifndef/endif with pragma

* Adding yanfali's recommended changes

keyboards/xd68/xd68.c

@@ -0,0 +1,22 @@
+#include "xd68.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+	matrix_init_user();
+	led_init_ports();
+}
+
+void led_init_ports(void) {
+    // * Set our LED pins as output
+    setPinOutput(B2);
+    writePinHigh(B2);
+}
+
+bool led_update_kb(led_t led_state) {
+    if(led_update_user(led_state)) {
+        writePin(B2, !led_state.caps_lock);
+    }
+    return true;
+}
+