added vscode config

.vscode/launch.json

@@ -0,0 +1,29 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "debug unittest",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/output/test/unittest/unittest",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "make test",
+            "miDebuggerPath": "/usr/bin/gdb"
+        }
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,40 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "make example",
+            "type": "shell",
+            "command": "make example",
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
+            "label": "make clean",
+            "type": "shell",
+            "command": "make clean",
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": "build"
+        },
+        {
+            "label": "make unittest",
+            "type": "shell",
+            "command": "make unittest",
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "test",
+                "isDefault": true
+            }
+        }
+    ]
+}