Implemented KRContext::getResources

FBX Importing toolchain now detects need for vertex tangent vectors based on presence of Normal maps, and only imports them when needed.  If tangent vectors are needed, but not present in the FBX file, they are calculated during the import process.  Importing tangents increases the size of the vertex data and reduces the ability to share vertexes for multiple faces when using indexed triangle rendering; therefore, they are imported sparingly.

KREngine/kraken/KRContext.h

@@ -72,6 +72,8 @@ public:
     
     long getAbsoluteTimeMilliseconds();
     
+    std::vector<KRResource *> getResources();
+    
 private:
     KRBundleManager *m_pBundleManager;
     KRSceneManager *m_pSceneManager;