调整类重载，修复部分BUG，增加请求头检查

UNSWebServerCore/WebFileInfo.cpp

@@ -90,3 +90,13 @@ size_t WebFileInfo::GetFileSize() const
 {
 	return FileSize;
 }
+
+void WebFileInfo::SetStorageFileName(const std::string& sfn)
+{
+	StorageFileName = sfn;
+}
+
+void WebFileInfo::SetOriginalFileName(const std::string& ofn)
+{
+	OriginalFileName = ofn;
+}