chore: initial extension setup

.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=733558
+	// for the documentation about the extensions.json format
+	"recommendations": [
+		"dbaeumer.vscode-eslint",
+        "ms-vscode.extension-test-runner"
+	]
+}

.vscode/launch.json

@@ -0,0 +1,17 @@
+// A launch configuration that launches the extension inside a new window
+// 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": "Run Extension",
+			"type": "extensionHost",
+			"request": "launch",
+			"args": [
+				"--extensionDevelopmentPath=${workspaceFolder}"
+			]
+		}
+	]
+}