fixed export exceptions on import

Ogre and 3MF imports threw DeadlyExportErrors under some circumstances. Bad for people who assumed that they only needed to catch DeadlyImportErrors. Changed them to DeadlyImportErrors.

code/AssetLib/3MF/D3MFOpcPackage.cpp

@@ -156,7 +156,7 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
             mRootStream = mZipArchive->Open(rootFile.c_str());
             ai_assert(mRootStream != nullptr);
             if (nullptr == mRootStream) {
-                throw DeadlyExportError("Cannot open root-file in archive : " + rootFile);
+                throw DeadlyImportError("Cannot open root-file in archive : " + rootFile);
             }
 
         } else if (file == D3MF::XmlTag::CONTENT_TYPES_ARCHIVE) {

code/AssetLib/Ogre/OgreBinarySerializer.cpp

@@ -181,13 +181,13 @@ Mesh *OgreBinarySerializer::ImportMesh(MemoryStreamReader *stream) {
 
     uint16_t id = serializer.ReadHeader(false);
     if (id != HEADER_CHUNK_ID) {
-        throw DeadlyExportError("Invalid Ogre Mesh file header.");
+        throw DeadlyImportError("Invalid Ogre Mesh file header.");
     }
 
     /// @todo Check what we can actually support.
     std::string version = serializer.ReadLine();
     if (version != MESH_VERSION_1_8) {
-        throw DeadlyExportError("Mesh version ", version, " not supported by this importer. Run OgreMeshUpgrader tool on the file and try again.",
+        throw DeadlyImportError("Mesh version ", version, " not supported by this importer. Run OgreMeshUpgrader tool on the file and try again.",
                                                     " Supported versions: ", MESH_VERSION_1_8);
     }
 
@@ -797,13 +797,13 @@ MemoryStreamReaderPtr OgreBinarySerializer::OpenReader(Assimp::IOSystem *pIOHand
 void OgreBinarySerializer::ReadSkeleton(Skeleton *skeleton) {
     uint16_t id = ReadHeader(false);
     if (id != HEADER_CHUNK_ID) {
-        throw DeadlyExportError("Invalid Ogre Skeleton file header.");
+        throw DeadlyImportError("Invalid Ogre Skeleton file header.");
     }
 
     // This deserialization supports both versions of the skeleton spec
     std::string version = ReadLine();
     if (version != SKELETON_VERSION_1_8 && version != SKELETON_VERSION_1_1) {
-        throw DeadlyExportError("Skeleton version ", version, " not supported by this importer.",
+        throw DeadlyImportError("Skeleton version ", version, " not supported by this importer.",
                                                     " Supported versions: ", SKELETON_VERSION_1_8, " and ", SKELETON_VERSION_1_1);
     }