Added nql-lang package for parsing nql filters

refs https://github.com/TryGhost/Team/issues/972

Applying a filter in the new members list updates URL and the filter dropdown contains the filters you've created. We want to keep the filters in filter dropdown on page refresh, which needs parsing nql filter from URL and re-building the filter list for the UI. This needs the `@nexes/nql-lang` package that parses the nql filters in JSON form.

Since `nql-lang` package had a dependency on `path`, `util` and `fs` node modules, this change needs a tweak in ember cli build using `ember-auto-import`, where we polyfill `path` and `util` package while using empty value for `fs` package.

ghost/admin/ember-cli-build.js

@@ -218,6 +218,15 @@ module.exports = function (defaults) {
                     {moveGroupAttrsToElems: false}
                 ]
             }
+        },
+        autoImport: {
+            webpack: {
+                node: {
+                    util: true,
+                    fs: 'empty',
+                    path: true
+                }
+            }
         }
     });
 

ghost/admin/package.json

@@ -30,6 +30,7 @@
     "@ember/render-modifiers": "1.0.2",
     "@glimmer/component": "1.0.4",
     "@html-next/vertical-collection": "2.0.0",
+    "@nexes/nql-lang": "^0.0.1",
     "@sentry/ember": "6.12.0",
     "@tryghost/color-utils": "0.1.1",
     "@tryghost/helpers": "1.1.52",

ghost/admin/yarn.lock

@@ -1659,6 +1659,11 @@
   resolved "https://registry.yarnpkg.com/@miragejs/pretender-node-polyfill/-/pretender-node-polyfill-0.1.2.tgz#d26b6b7483fb70cd62189d05c95d2f67153e43f2"
   integrity sha512-M/BexG/p05C5lFfMunxo/QcgIJnMT2vDVCd00wNqK2ImZONIlEETZwWJu1QtLxtmYlSHlCFl3JNzp0tLe7OJ5g==
 
+"@nexes/nql-lang@^0.0.1":
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/@nexes/nql-lang/-/nql-lang-0.0.1.tgz#a13c023873f9bc11b9e4e284449c6cfbeccc8011"
+  integrity sha1-oTwCOHP5vBG55OKERJxs++zMgBE=
+
 "@nodelib/fs.scandir@2.1.5":
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz#7619c2eb21b25483f6d167548b4cfd5a7488c3d5"