Do not fail SDK install if Redpoint Clang is not available (#372)

Author: hach-que

UET/Redpoint.Uet.SdkManagement/Sdk/WindowsSdk/WindowsSdkInstaller.cs

@@ -243,6 +243,7 @@ void RecursivelyAddComponent(string componentId, string fromComponentId)
             }
 
             // Download "Clang for Unreal Engine" and install it into the LLVM directory for AutoSDK.
+            try
             {
                 using (var client = new HttpClient())
                 {
@@ -332,6 +333,10 @@ await DirectoryAsync.CopyAsync(
                     }
                 }
             }
+            catch (Exception ex)
+            {
+                _logger.LogWarning($"Failed to install Clang for Unreal Engine: {ex}");
+            }
 
             // Write out the environment file.
             var msvcVersion = Path.GetFileName(Directory.GetDirectories(Path.Combine(sdkPackagePath, "VS2022", "VC", "Tools", "MSVC"))[0]);