Draft: Add new group form to organizations

What does this MR do and why?

Add new group form to organizations

Allows user to create a new group in an organization

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Related to #410804 (closed)

app/assets/javascripts/api/groups_api.js

@@ -31,6 +31,11 @@ export function getGroups(query, options, callback = () => {}, axiosOptions = {}
   return axiosGet(url, query, options, callback, axiosOptions);
 }
 
+export function createGroup(data) {
+  const url = buildApiUrl(GROUPS_PATH);
+  return axios.post(url, data);
+}
+
 export function getDescendentGroups(
   parentGroupId,
   query,