Add binding for IS31FL3730 LED driver

src/devices/Is31fl3730/Bonnet5x7x6.cs

@@ -0,0 +1,61 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.Device.I2c;
+using System.Threading;
+
+namespace Iot.Device.Display
+{
+    /// <summary>
+    /// Represents LED Dot Matrix Breakout
+    /// </summary>
+    // Datasheet: https://cdn-shop.adafruit.com/product-files/3017/31FL3730.pdf
+    // Product: https://shop.pimoroni.com/products/led-dot-matrix-breakout
+    // Related repo: https://github.com/pimoroni/microdot-phat
+    public class Matrix5x7 : IDisposable
+    {
+        private readonly Is31fl3730 _is31fl3730;
+
+        /// <summary>
+        /// Initialize IS31FL3730 device
+        /// </summary>
+        /// <param name="is31fl3730">The <see cref="Iot.Device.Display.Is31fl3730"/> to create with.</param>
+        /// <param name="width">The width of the LED matrix.</param>
+        /// <param name="height">The height of the LED matrix.</param>
+        public Matrix5x7(Is31fl3730 is31fl3730, int width, int height, int matrix)
+        {
+            _is31fl3730 = is31fl3730;
+            Width = width;
+            Height = height;
+            Matrix = matrix;
+        }
+
+        /// <summary>
+        /// Indexer for matrix.
+        /// </summary>
+        public int this[int x, int y]
+        {
+            get => _is31fl3730.ReadLed(Matrix, x, y);
+            set => _is31fl3730.WriteLed(Matrix, x, y, value);
+        }
+
+        public static readonly int DefaultI2cAddress = 0x61;
+
+        /// <summary>
+        /// Width of LED matrix (x axis).
+        /// </summary>
+        public readonly int Width = 5;
+
+        /// <summary>
+        /// Height of LED matrix (y axis).
+        /// </summary>
+        public readonly int Height = 7;
+
+        /// <summary>
+        /// Identification of matrix (of 2).
+        /// </summary>
+        public readonly int Matrix = 0;
+    }
+}

src/devices/Is31fl3730/Breakout5x7x2.cs

@@ -0,0 +1,62 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.Device.I2c;
+using System.Threading;
+
+namespace Iot.Device.Display
+{
+    /// <summary>
+    /// Represents an IS31FL3731 LED Matrix driver
+    /// </summary>
+    // Datasheet: https://cdn-shop.adafruit.com/product-files/3017/31FL3730.pdf
+    // Product: https://shop.pimoroni.com/products/microdot-phat
+    // Product: https://shop.pimoroni.com/products/led-dot-matrix-breakout
+    // Related repo: https://github.com/pimoroni/microdot-phat
+    public class Matrix5x7 : IDisposable
+    {
+        private readonly Is31fl3730 _is31fl3730;
+
+        /// <summary>
+        /// Initialize IS31FL3730 device
+        /// </summary>
+        /// <param name="is31fl3730">The <see cref="Iot.Device.Display.Is31fl3730"/> to create with.</param>
+        /// <param name="width">The width of the LED matrix.</param>
+        /// <param name="height">The height of the LED matrix.</param>
+        public Matrix5x7(Is31fl3730 is31fl3730, int width, int height, int matrix)
+        {
+            _is31fl3730 = is31fl3730;
+            Width = width;
+            Height = height;
+            Matrix = matrix;
+        }
+
+        /// <summary>
+        /// Indexer for matrix.
+        /// </summary>
+        public int this[int x, int y]
+        {
+            get => _is31fl3730.ReadLed(Matrix, x, y);
+            set => _is31fl3730.WriteLed(Matrix, x, y, value);
+        }
+
+        public static readonly int DefaultI2cAddress = 0x61;
+
+        /// <summary>
+        /// Width of LED matrix (x axis).
+        /// </summary>
+        public readonly int Width = 5;
+
+        /// <summary>
+        /// Height of LED matrix (y axis).
+        /// </summary>
+        public readonly int Height = 7;
+
+        /// <summary>
+        /// Identification of matrix (of 2).
+        /// </summary>
+        public readonly int Matrix = 0;
+    }
+}