Implement Initialize method in Editor class and override in derived editors

src/app/editor/code/assembly_editor.cc

@@ -97,6 +97,10 @@ FolderItem LoadFolder(const std::string& folder) {
 
 }  // namespace
 
+void AssemblyEditor::Initialize() {
+  // Set the language definition
+}
+
 void AssemblyEditor::OpenFolder(const std::string& folder_path) {
   current_folder_ = LoadFolder(folder_path);
 }

src/app/editor/code/assembly_editor.h

@@ -33,6 +33,7 @@ class AssemblyEditor : public Editor {
     file_is_loaded_ = false;
   }
 
+  void Initialize() override;
   void Update(bool &is_loaded);
   void InlineUpdate();