Just the functional assimp lib rather than the entire assimp repository unnecessarily.

Engine/lib/assimp/code/Importer.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2018, assimp team
-
+Copyright (c) 2006-2017, assimp team
 
 All rights reserved.
 
@@ -68,8 +67,10 @@ namespace Assimp    {
  *  std::vector and std::map in the public headers. Furthermore we are dropping
  *  any STL interface problems caused by mismatching STL settings. All
  *  size calculation are now done by us, not the app heap. */
-class ImporterPimpl {
+class ImporterPimpl
+{
 public:
+
     // Data type to store the key hash
     typedef unsigned int KeyType;
 
@@ -80,6 +81,8 @@ public:
     typedef std::map<KeyType, std::string> StringPropertyMap;
     typedef std::map<KeyType, aiMatrix4x4> MatrixPropertyMap;
 
+public:
+
     /** IO handler to use for all file accesses. */
     IOSystem* mIOHandler;
     bool mIsDefaultHandler;
@@ -113,34 +116,12 @@ public:
     MatrixPropertyMap mMatrixProperties;
 
     /** Used for testing - extra verbose mode causes the ValidateDataStructure-Step
-     *  to be executed before and after every single post-process step */
+     *  to be executed before and after every single postprocess step */
     bool bExtraVerbose;
 
     /** Used by post-process steps to share data */
     SharedPostProcessInfo* mPPShared;
-
-    /// The default class constructor.
-    ImporterPimpl() AI_NO_EXCEPT;
 };
-
-inline
-ImporterPimpl::ImporterPimpl() AI_NO_EXCEPT
-: mIOHandler( nullptr )
-, mIsDefaultHandler( false )
-, mProgressHandler( nullptr )
-, mIsDefaultProgressHandler( false )
-, mImporter()
-, mPostProcessingSteps()
-, mScene( nullptr )
-, mErrorString()
-, mIntProperties()
-, mFloatProperties()
-, mStringProperties()
-, mMatrixProperties()
-, bExtraVerbose( false )
-, mPPShared( nullptr ) {
-    // empty
-}
 //! @endcond