Add TryGetToolchain to build platform

#631

Source/Tools/Flax.Build/Build/Platform.cs

@@ -183,6 +183,16 @@ namespace Flax.Build
             throw new Exception(string.Format("Platform {0} is not supported.", targetPlatform));
         }
 
+        /// <summary>
+        /// Tries to create the build toolchain for a given architecture. Returns null if platform is not supported.
+        /// </summary>
+        /// <param name="targetArchitecture">The target architecture.</param>
+        /// <returns>The toolchain.</returns>
+        public Toolchain TryGetToolchain(TargetArchitecture targetArchitecture)
+        {
+            return HasRequiredSDKsInstalled ? GetToolchain(targetArchitecture) : null;
+        }
+
         /// <summary>
         /// Creates the build toolchain for a given architecture.
         /// </summary>