dev(yarn link): make it possible to yarn link easily with cornerstone3D and update docs (#3563)

.webpack/rules/transpileJavaScript.js

@@ -33,7 +33,11 @@ function transpileJavaScript(mode) {
       rootMode: 'upward',
       envName: mode,
       cacheCompression: false,
-      cacheDirectory: true,
+      // Note: This was causing a lot of issues with yarn link of the cornerstone
+      // only set this to true if you don't have a yarn link to external libs
+      // otherwise expect the lib changes not to be reflected in the dev server
+      // as it will be cached
+      cacheDirectory: false,
     },
   };
 }

.webpack/webpack.base.js

@@ -79,6 +79,11 @@ module.exports = (env, argv, { SRC_DIR, ENTRY }) => {
     module: {
       noParse: [/(codec)/, /(dicomicc)/],
       rules: [
+        {
+          test: /\.js$/,
+          enforce: 'pre',
+          use: 'source-map-loader',
+        },
         transpileJavaScriptRule(mode),
         loadWebWorkersRule,
         // loadShadersRule,