Add rest of file templates

private/templates/c++-mode/@@main.cpp

@@ -0,0 +1,25 @@
+# -*- mode: snippet -*-
+# group: file templates
+# contributor: Henrik Lissner
+# --
+/**
+ * @file
+ * @author  `user-full-name` <`user-mail-address`>
+ * @version ${1:0.1}
+ *
+ * @section DESCRIPTION
+ *
+ * ${2:Some description of this file}
+ */
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+int main(int argc, char *argv[]) {
+    $0
+
+    return 0;
+}