Scaffold VS Code extension

.vscode/extensions.json

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+{
+	// See http://go.microsoft.com/fwlink/?LinkId=827846
+	// for the documentation about the extensions.json format
+	"recommendations": ["dbaeumer.vscode-eslint", "ms-vscode.extension-test-runner"]
+}

.vscode/launch.json

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+// A launch configuration that compiles the extension and then opens it 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=${workspaceFolder}"],
+			"outFiles": ["${workspaceFolder}/out/**/*.js"],
+			"preLaunchTask": "${defaultBuildTask}"
+		}
+	]
+}

.vscode/settings.json

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+// Place your settings in this file to overwrite default and user settings.
+{
+	"files.exclude": {
+		"out": false // set this to true to hide the "out" folder with the compiled JS files
+	},
+	"search.exclude": {
+		"out": true // set this to false to include "out" folder in search results
+	},
+	// Turn off tsc task auto detection since we have the necessary tasks as npm scripts
+	"js/ts.tsc.autoDetect": "off"
+}

.vscode/tasks.json

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+// See https://go.microsoft.com/fwlink/?LinkId=733558
+// for the documentation about the tasks.json format
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"type": "npm",
+			"script": "watch",
+			"problemMatcher": "$tsc-watch",
+			"isBackground": true,
+			"presentation": {
+				"reveal": "never"
+			},
+			"group": {
+				"kind": "build",
+				"isDefault": true
+			}
+		}
+	]
+}