Red code legacy renderer (#383)

- Remove some references to gEnv->pRenderer/GetIEditor()->GetRenderer() that is now always null.
- Restore the debug console to existence.
- Stop building the following in preparation for their removal:

Code/CryEngine/Cry3DEngine/*
Code/CryEngine/RenderDll/*
Code/Tools/CryFXC/*
Code/Tools/HLSLCrossCompiler/*
Code/Tools/HLSLCrossCompilerMETAL/*
Code/Tools/RC/*
Code/Tools/ShaderCacheGen/*
Tools/CrySCompileServer/*

Gems/EMotionFX/Code/EMotionFX/Pipeline/RCExt/ExportContexts.h

@@ -12,7 +12,6 @@
 *
 */
 
-#include <RC/ResourceCompilerScene/Common/ExportContextGlobal.h>
 #include <SceneAPI/SceneCore/Events/CallProcessorBus.h>
 #include <SceneAPI/SceneCore/Events/ExportEventContext.h>
 #include <SceneAPI/SceneCore/Utilities/CoordinateSystemConverter.h>
@@ -21,6 +20,16 @@
 
 namespace AZ
 {
+    namespace RC
+    {
+        enum class Phase
+        {
+            Construction,   // The target is created.
+            Filling,        // Data is added to the target.
+            Finalizing      // Work on the target has completed.
+        };
+    }
+
     namespace SceneAPI
     {
         namespace Events