Add interface editor

src/utils/editor.cpp

@@ -0,0 +1,9 @@
+#include <utils/editor.hpp>
+
+#include <iostream>
+
+namespace utils {
+void OpenEditor(const std::string& file) {
+  std::cout << "Open file " << file << " TODO" << std::endl;
+}
+}

src/utils/editor.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+#include <string>
+
+namespace utils {
+void OpenEditor(const std::string& file);
+}