Ui/ember blueprint updates (#9627)

* Import layout in blueprint if generator used with --in flag

* Generated story works with hot reloading out of the box

ui/blueprints/component/index.js

@@ -58,7 +58,7 @@ module.exports = {
     let contents = '';
 
     // if we're in an addon, build import statement
-    if (options.project.isEmberCLIAddon() || (options.inRepoAddon && !options.inDummy)) {
+    if (options.project.isEmberCLIAddon() || (options.inRepoAddon && !options.inDummy) || !!options.in) {
       if (options.pod) {
         templatePath = './template';
       } else {

ui/blueprints/story/files/__path__/stories/__name__.stories.js

@@ -1,16 +1,14 @@
-
 import hbs from 'htmlbars-inline-precompile';
 import { storiesOf } from '@storybook/ember';
-<%= importMD %>
+import { withKnobs } from '@storybook/addon-knobs';
 
 storiesOf('<%= classifiedModuleName %>', module)
   .addParameters({ options: { showPanel: true } })
+  .addDecorator(withKnobs())
   .add(`<%= classifiedModuleName %>`, () => ({
     template: hbs`
       <h5 class="title is-5"><%= header %></h5>
       <<%= classifiedModuleName %>/>
     `,
     context: {},
-  }),
-  {notes}
-);
+  }));

ui/blueprints/story/index.js

@@ -38,9 +38,7 @@ module.exports = {
   locals: function(options) {
     let contents = '';
 
-    let importMD = "import notes from './" + stringUtil.dasherize(options.entity.name) + ".md';\n";
     return {
-      importMD: importMD,
       contents: contents,
       path: getPathOption(options),
       header: stringUtil