added vscode task and launch

.vscode/launch.json

@@ -0,0 +1,20 @@
+{
+    // 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": [
+        {
+            "type": "cortex-debug",
+            "request": "launch",
+            "name": "Debug (QEMU)",
+            "servertype": "qemu",
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": "cargo build --examples",
+            "runToMain": true,
+            "executable": "./target/thumbv7m-none-eabi/debug/examples/${fileBasenameNoExtension}",
+            "cpu": "cortex-m3",
+            "machine": "lm3s6965evb",
+        },
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,14 @@
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"type": "cargo",
+			"command": "build --example ${fileBasenameNoExtension}  --target thumbv7m-none-eabi",
+			"problemMatcher": [
+				"$rustc"
+			],
+			"group": "build",
+			"label": "cargo build --examples"
+		}
+	]
+}