Bring in Jinja and Sass for text-input component

app/assets/stylesheets/govuk-frontend/_all.scss

@@ -27,6 +27,7 @@ $govuk-assets-path: "/static/";
 @import 'components/details/_details';
 @import 'components/radios/_radios';
 @import 'components/checkboxes/_checkboxes';
+@import 'components/input/_input';
 
 @import "utilities/all";
 @import "overrides/all";

gulpfile.js

@@ -70,7 +70,8 @@ const copy = {
         'fieldset',
         'hint',
         'label',
-        'checkboxes'
+        'checkboxes',
+        'input'
       ];
       let done = 0;