Adding back OnOutput to MaterialEditor for override

Signed-off-by: Dayo Lawal <lawalfua@amazon.com>

Gems/Atom/Tools/MaterialEditor/Code/Source/MaterialEditorApplication.cpp

@@ -281,6 +281,24 @@ namespace MaterialEditor
         }
     }
 
+    bool MaterialEditorApplication::OnOutput(const char* window, const char* message)
+    {
+        // Suppress spam from the Source Control system
+        if (0 == strncmp(window, AzToolsFramework::SCC_WINDOW, AZ_ARRAY_SIZE(AzToolsFramework::SCC_WINDOW)))
+        {
+            return true;
+        }
+
+        if (m_logFile)
+        {
+            m_logFile->AppendLog(AzFramework::LogFile::SEV_NORMAL, window, message);
+        }
+        else
+        {
+            m_startupLogSink.push_back({ window, message });
+        }
+        return false;
+    }
 
     void MaterialEditorApplication::ProcessCommandLine(const AZ::CommandLine& commandLine)
     {

Gems/Atom/Tools/MaterialEditor/Code/Source/MaterialEditorApplication.h

@@ -96,6 +96,11 @@ namespace MaterialEditor
         void SaveSettings() override;
         //////////////////////////////////////////////////////////////////////////
 
+        //////////////////////////////////////////////////////////////////////////
+        // AZ::Debug::TraceMessageBus::Handler overrides...
+        bool OnOutput(const char* window, const char* message) override;
+        //////////////////////////////////////////////////////////////////////////      
+
         void CompileCriticalAssets();
 
         void ProcessCommandLine(const AZ::CommandLine& commandLine);