Migrate features from rules.mk to DD (#23247)

keyboards/converter/numeric_keypad_iie/keyboard.json

@@ -8,6 +8,14 @@
         "pid": "0x0000",
         "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": false,
+        "command": true,
+        "console": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": false
+    },
     "matrix_pins": {
         "cols": ["D1", "D0", "D4", "C6", "D7", "E6"],
         "rows": ["B0", "B2", "D2", "D3"]

keyboards/converter/numeric_keypad_iie/rules.mk

@@ -1,12 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes       # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = yes        # Console for debug
-COMMAND_ENABLE = yes        # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output