Add "ZoneSettings" extensions

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

@@ -0,0 +1,23 @@
+namespace AMWD.Net.Api.Cloudflare.Zones
+{
+	/// <summary>
+	/// Turn on or off Cloudflare error pages generated from issues sent from the origin
+	/// server. If enabled, this setting triggers error pages issued by the origin.
+	/// </summary>
+	public class OriginErrorPagePassThru : ZoneSettingBase
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="OriginErrorPagePassThru"/> class.
+		/// </summary>
+		public OriginErrorPagePassThru()
+		{
+			Id = ZoneSettingId.OriginErrorPagePassThru;
+		}
+
+		/// <summary>
+		/// The status of Origin Error Page Passthru.
+		/// </summary>
+		[JsonProperty("value")]
+		public OnOffState? Value { get; set; }
+	}
+}