Update material.inl

aiMaterial::AddProperty template specializations are used by import methods in B3DImporter and SceneProcessor; they should be defined accordingly even when ASSIMP_BUILD_NO_EXPORT is defined.

include/assimp/material.inl

@@ -176,8 +176,6 @@ inline aiReturn aiMaterial::Get<aiString>(const char* pKey,unsigned int type,
 }
 
 
-#ifndef ASSIMP_BUILD_NO_EXPORT
-
 // ---------------------------------------------------------------------------
 template<class TYPE>
 aiReturn aiMaterial::AddProperty (const TYPE* pInput,
@@ -269,8 +267,6 @@ inline aiReturn aiMaterial::AddProperty<int> (const int* pInput,
 		pKey,type,index,aiPTI_Integer);
 }
 
-#endif
-
 //! @endcond
 
 #endif //! AI_MATERIAL_INL_INC