Add "ZoneHold" extensions

Extensions/Cloudflare.Zones/Requests/RemoveZoneHoldRequest.cs

@@ -0,0 +1,29 @@
+namespace AMWD.Net.Api.Cloudflare.Zones
+{
+	/// <summary>
+	/// Represents a request to remove a zone hold.
+	/// </summary>
+	public class RemoveZoneHoldRequest
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="RemoveZoneHoldRequest"/> class.
+		/// </summary>
+		/// <param name="zoneId">The zone identifier.</param>
+		public RemoveZoneHoldRequest(string zoneId)
+		{
+			ZoneId = zoneId;
+		}
+
+		/// <summary>
+		/// The zone identifier.
+		/// </summary>
+		public string ZoneId { get; set; }
+
+		/// <summary>
+		/// If it is provided, the hold will be temporarily disabled,
+		/// then automatically re-enabled by the system at the time specified in this timestamp.
+		/// Otherwise, the hold will be disabled indefinitely.
+		/// </summary>
+		public DateTime? HoldAfter { get; set; }
+	}
+}