Migrate features from rules.mk to data driven - IJK (#23276)

keyboards/kingly_keys/smd_milk/keyboard.json

@@ -0,0 +1,57 @@
+{
+  "keyboard_name": "SMD-2% Milk",
+  "manufacturer": "Kingly-Keys",
+  "url": "",
+  "maintainer": "TheRoyalSweatshirt",
+  "usb": {
+    "vid": "0xFEED",
+    "pid": "0xB195",
+    "device_version": "0.0.1",
+    "force_nkro": true
+  },
+  "rgblight": {
+    "hue_steps": 6,
+    "saturation_steps": 4,
+    "brightness_steps": 10,
+    "led_count": 4,
+    "animations": {
+      "breathing": true,
+      "rainbow_mood": true,
+      "rainbow_swirl": true,
+      "snake": true,
+      "knight": true,
+      "christmas": true,
+      "static_gradient": true,
+      "rgb_test": true,
+      "alternating": true,
+      "twinkle": true
+    }
+  },
+  "ws2812": {
+    "pin": "B3"
+  },
+  "features": {
+    "bootmagic": false,
+    "command": true,
+    "console": true,
+    "extrakey": false,
+    "mousekey": false,
+    "nkro": true,
+    "rgblight": true
+  },
+  "matrix_pins": {
+    "cols": ["D3"],
+    "rows": ["C5", "D2"]
+  },
+  "diode_direction": "ROW2COL",
+  "processor": "atmega32u2",
+  "bootloader": "atmel-dfu",
+  "layouts": {
+    "LAYOUT": {
+      "layout": [
+        {"matrix": [0, 0], "x": 0, "y": 0},
+        {"matrix": [1, 0], "x": 0, "y": 1}
+      ]
+    }
+  }
+}