[Keyboard] add rgb animation handwired/swiftrax/glacier (qmk#18121)

Co-authored-by: swiftrax <swiftrax@github.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/handwired/swiftrax/glacier/config.h

@@ -42,4 +42,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* RGB */
 #define RGB_DI_PIN B0
-#define RGBLED_NUM 12
+#define RGBLED_NUM 12
+#define RGBLIGHT_EFFECT_BREATHING
+#define RGBLIGHT_EFFECT_RAINBOW_MOOD
+#define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+#define RGBLIGHT_EFFECT_SNAKE
+#define RGBLIGHT_EFFECT_KNIGHT
+#define RGBLIGHT_EFFECT_CHRISTMAS
+#define RGBLIGHT_EFFECT_STATIC_GRADIENT
+#define RGBLIGHT_EFFECT_ALTERNATING
+#define RGBLIGHT_EFFECT_TWINKLE