Add core jquery libs via yarn

Note that the existing version of jquery (1.12.4) has been installed
but the existing version of jquery-ui (1.11.4) was unavailable and has
been upgraded to v1.12.1. As well, jquery-ujs has been bumped to the
newest version.

package.json

@@ -21,6 +21,9 @@
     "file-loader": "^0.11.1",
     "form-serialize": "^0.7.1",
     "glob": "^7.1.1",
+    "jquery": "1.12.4",
+    "jquery-ui": "^1.12.1",
+    "jquery-ujs": "^1.2.2",
     "js-yaml": "^3.8.3",
     "lodash.throttle": "^4.1.1",
     "moment": "^2.22.2",

yarn.lock

@@ -3185,6 +3185,24 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
+jquery-ui@^1.12.1:
+  version "1.12.1"
+  resolved "https://registry.yarnpkg.com/jquery-ui/-/jquery-ui-1.12.1.tgz#bcb4045c8dd0539c134bc1488cdd3e768a7a9e51"
+
+jquery-ujs@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/jquery-ujs/-/jquery-ujs-1.2.2.tgz#6a8ef1020e6b6dda385b90a4bddc128c21c56397"
+  dependencies:
+    jquery ">=1.8.0"
+
+[email protected]:
+  version "1.12.4"
+  resolved "https://registry.yarnpkg.com/jquery/-/jquery-1.12.4.tgz#01e1dfba290fe73deba77ceeacb0f9ba2fec9e0c"
+
+jquery@>=1.8.0:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.3.1.tgz#958ce29e81c9790f31be7792df5d4d95fc57fbca"
+
 js-base64@^2.1.8:
   version "2.4.9"
   resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-2.4.9.tgz#748911fb04f48a60c4771b375cac45a80df11c03"