Fixes dotnet publish -c Release for Angular template

Author: ajtowf

templates/Angular2Spa/webpack.config.js

@@ -9,7 +9,7 @@ module.exports = (env) => {
     const sharedConfig = {
         stats: { modules: false },
         context: __dirname,
-        resolve: { extensions: [ '.js', '.ts' ] },
+        resolve: { extensions: [ '.js', '.ts', '.json' ] },
         output: {
             filename: '[name].js',
             publicPath: '/dist/' // Webpack dev middleware, if enabled, handles requests for this URL prefix

templates/Angular2Spa/webpack.config.vendor.js

@@ -8,7 +8,7 @@ module.exports = (env) => {
     const isDevBuild = !(env && env.prod);
     const sharedConfig = {
         stats: { modules: false },
-        resolve: { extensions: [ '.js' ] },
+        resolve: { extensions: [ '.js', '.json' ] },
         module: {
             rules: [
                 { test: /\.(png|woff|woff2|eot|ttf|svg)(\?|$)/, use: 'url-loader?limit=100000' }