[Keyboard] Add Fancytech Fancyalice66 (#20647)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: jack <0x6a73@protonmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/fancytech/fancyalice66/config.h

@@ -0,0 +1,14 @@
+// Copyright 2022 chent7 (@chent7)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#ifdef RGB_MATRIX_ENABLE
+#    define WS2812_DI_PIN B0
+#    define RGB_DI_PIN B0
+#    define RGB_MATRIX_LED_COUNT 82
+
+    /* RGB Matrix effect */
+#    define RGB_MATRIX_KEYPRESSES // reacts to keypresses
+#    define RGB_MATRIX_FRAMEBUFFER_EFFECTS
+#endif