[Keyboard] SharkPCB release Beta compatibility (#16713)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/acheron/shark/beta/beta.c

@@ -0,0 +1,32 @@
+/* Copyright 2020 Gondolindrim
+ *
+ * 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 "beta.h"
+void board_init(void) {
+	setPinInput(B6);
+	setPinInput(B7);
+}
+
+#ifdef ENCODER_ENABLE
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+    if(!encoder_update_user(index, clockwise)) return false;
+    if (index == 0) {
+        if (clockwise) tap_code_delay(KC_VOLU, 10);
+        else tap_code_delay(KC_VOLD, 10);
+    }   
+    return true;
+}
+#endif