move dependencies needed to build CLI to separate package.json

packaging/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "codeql-packaging",
+  "version": "0.0.0",
+  "private": true,
+  "description": "CodeQL action - CLI packaging",
+  "scripts": {
+    "build-cli": "webpack --mode production && pkg dist/code-scanning-cli.js  --out-path dist"
+  },
+  "license": "MIT",
+  "dependencies": {},
+  "devDependencies": {
+    "pkg": "^4.4.9",
+    "ts-loader": "8.0.2",
+    "webpack": "^4.44.1",
+    "webpack-cli": "^3.3.12"
+  }
+}

packaging/webpack.config.js

@@ -0,0 +1,25 @@
+const path = require('path');
+
+module.exports = {
+  entry: '../src/cli.ts',
+  module: {
+    rules: [
+      {
+        test: /\.ts$/,
+        use: 'ts-loader',
+        exclude: /node_modules/,
+      },
+    ],
+  },
+  target: 'node',
+  resolve: {
+    extensions: [ '.ts', '.js' ],
+  },
+  output: {
+    filename: 'code-scanning-cli.js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  optimization: {
+		minimize: false
+	},
+};