Add "ZoneSettings" extensions

Extensions/Cloudflare.Zones/Models/Settings/OpportunisticEncryption.cs

@@ -0,0 +1,24 @@
+namespace AMWD.Net.Api.Cloudflare.Zones
+{
+	/// <summary>
+	/// Opportunistic Encryption allows browsers to access HTTP URIs over an encrypted
+	/// TLS channel. It's not a substitute for HTTPS, but provides additional security
+	/// for otherwise vulnerable requests.
+	/// </summary>
+	public class OpportunisticEncryption : ZoneSettingBase
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="OpportunisticEncryption"/> class.
+		/// </summary>
+		public OpportunisticEncryption()
+		{
+			Id = ZoneSettingId.OpportunisticEncryption;
+		}
+
+		/// <summary>
+		/// The status of Opportunistic Encryption.
+		/// </summary>
+		[JsonProperty("value")]
+		public OnOffState? Value { get; set; }
+	}
+}