Added support for 2% Milk (Updated with metadata)

Update app/boards/shields/two_percent_milk/two_percent_milk.overlay

Co-Authored-By: Nick Winans <nick@winans.codes>

app/boards/shields/two_percent_milk/Kconfig.defconfig

@@ -0,0 +1,9 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_TWO_PERCENT_MILK
+
+config ZMK_KEYBOARD_NAME
+    default "2% Milk"
+
+endif

app/boards/shields/two_percent_milk/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_TWO_PERCENT_MILK
+	def_bool $(shields_list_contains,two_percent_milk)

app/boards/shields/two_percent_milk/two_percent_milk.conf

@@ -0,0 +1,2 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT

app/boards/shields/two_percent_milk/two_percent_milk.keymap

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+ #include <behaviors.dtsi>
+ #include <dt-bindings/zmk/keys.h>
+ #include <dt-bindings/zmk/bt.h>
+ 
+ / {
+     keymap {
+         compatible = "zmk,keymap";
+ 
+         default_layer {
+             bindings = <
+              &kp X
+              &kp Z
+             >;
+         };
+     };
+ };

app/boards/shields/two_percent_milk/two_percent_milk.overlay

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-direct";
+
+		label = "KSCAN";
+
+		input-gpios
+			= <&pro_micro 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			;
+
+	};
+
+};

app/boards/shields/two_percent_milk/two_percent_milk.zmk.yml

@@ -0,0 +1,8 @@
+file_format: "1"
+id: two_percent_milk
+name: 2% Milk
+type: shield
+url: https://github.com/Spaceboards/SpaceboardsHardware/tree/master/Keyboards/2%25%20Milk
+requires: [pro_micro]
+features:
+  - keys