Move LED/RGB Matrix code into their own directories (#13257)

quantum/rgb_matrix/animations/runners/effect_runner_dx_dy.h

@@ -0,0 +1,17 @@
+#pragma once
+
+typedef HSV (*dx_dy_f)(HSV hsv, int16_t dx, int16_t dy, uint8_t time);
+
+bool effect_runner_dx_dy(effect_params_t* params, dx_dy_f effect_func) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 2);
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        int16_t dx  = g_led_config.point[i].x - k_rgb_matrix_center.x;
+        int16_t dy  = g_led_config.point[i].y - k_rgb_matrix_center.y;
+        RGB     rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, dx, dy, time));
+        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+    }
+    return led_max < DRIVER_LED_TOTAL;
+}