tooling(webpack): move webpack to its own folder (#6076)

.webpack/webpack.coverage.js

@@ -0,0 +1,37 @@
+/* global module */
+
+/*
+This file extends the webpack.dev.js config to add babel istanbul coverage.
+OpenMCT Continuous Integration servers use this configuration to add code coverage
+information to pull requests.
+*/
+
+const config = require("./webpack.dev");
+// eslint-disable-next-line no-undef
+const CI = process.env.CI === "true";
+
+config.devtool = CI ? false : undefined;
+
+config.devServer.hot = false;
+
+config.module.rules.push({
+    test: /\.js$/,
+    exclude: /(Spec\.js$)|(node_modules)/,
+    use: {
+        loader: "babel-loader",
+        options: {
+            retainLines: true,
+            // eslint-disable-next-line no-undef
+            plugins: [
+                [
+                    "babel-plugin-istanbul",
+                    {
+                        extension: [".js", ".vue"]
+                    }
+                ]
+            ]
+        }
+    }
+});
+
+module.exports = config;