feat: Add overload to GuidUtils to combine an IEnumerable of guids into a new deterministic guid

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+ - Added overload to GuidUtils that takes an enumerable of guids and combines them into a new deterministic guid
 
 ### Changed
  - A SafeTimer constructor that executes the callback immediately now does this instead of waiting infinitely

ICD.Common.Utils/GuidUtils.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using ICD.Common.Utils.Extensions;
 
 namespace ICD.Common.Utils
 {
@@ -30,5 +32,13 @@ namespace ICD.Common.Utils
 
 			return new Guid(aBytes);
 		}
+
+		/// <summary>
+		/// Combines the guids in the given order to make a new, deterministic guid.
+		/// </summary>
+		public static Guid Combine(IEnumerable<Guid> guids)
+		{
+			return guids.AggregateOrDefault(Combine, default(Guid));
+		}
 	}
 }