Add UI/UX polish in prep for merge

* Bring UI/UX inline with recent changes
* Use select components as a stopgap for credential_types and orgs
* Add tabs to permissions view
* Add Organization model

awx/ui/client/features/credentials/add-edit-credentials.view.html

@@ -10,7 +10,7 @@
         <at-form state="vm.form">
             <at-input-text col="4" tab="1" state="vm.form.name"></at-input-text>
             <at-input-text col="4" tab="2" state="vm.form.description"></at-input-text>
-            <at-input-lookup col="4" tab="3" state="vm.form.organization"></at-input-lookup>
+            <at-input-select col="4" tab="3" state="vm.form.organization"></at-input-select>
 
             <at-divider></at-divider>
 
@@ -32,6 +32,11 @@
                  $state.current.name === 'credentials.edit.permissions.add'">
     <at-panel-heading>Credentials Permissions</at-panel-heading>
 
+    <at-tab-group>
+        <at-tab state="vm.tab.details">Details</at-tab>
+        <at-tab state="vm.tab.permissions">Permissions</at-tab>
+    </at-tab-group>
+
     <at-panel-body>
         <div class="at-CredentialsPermissions" ui-view="related"></div>
     </at-panel-body>