Add "ZoneSettings" extensions

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

@@ -0,0 +1,24 @@
+namespace AMWD.Net.Api.Cloudflare.Zones
+{
+	/// <summary>
+	/// Advanced protection from Distributed Denial of Service (DDoS) attacks on your
+	/// website. This is an uneditable value that is <see cref="OnOffState.On"/> in the
+	/// case of Business and Enterprise zones.
+	/// </summary>
+	public class AdvancedDDoS : ZoneSettingBase
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AdvancedDDoS"/> class.
+		/// </summary>
+		public AdvancedDDoS()
+		{
+			Id = ZoneSettingId.AdvancedDDoS;
+		}
+
+		/// <summary>
+		/// Current value of the zone setting.
+		/// </summary>
+		[JsonProperty("value")]
+		public OnOffState Value { get; set; }
+	}
+}