Add "Spaces", an application for managing policy namespaces

Summary: Ref T3820. This doesn't actually do anything yet, but dumps in all the plumbing.

Test Plan:
{F156989}

{F156990}

{F156991}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: eadler, wienczny, jdloft, devurandom, thz, hwinkel, 20after4, sascha-egerer, seporaitis, joshuaspence, chad, epriestley

Maniphest Tasks: T3820

Differential Revision: https://secure.phabricator.com/D9204

src/applications/spaces/application/PhabricatorApplicationSpaces.php

@@ -0,0 +1,67 @@
+<?php
+
+final class PhabricatorApplicationSpaces extends PhabricatorApplication {
+
+  public function getBaseURI() {
+    return '/spaces/';
+  }
+
+  public function getName() {
+    return pht('Spaces');
+  }
+
+  public function getShortDescription() {
+    return pht('Policy Namespaces');
+  }
+
+  public function getFontIcon() {
+    return 'fa-compass';
+  }
+
+  public function getTitleGlyph() {
+    return "\xE2\x97\x8B";
+  }
+
+  public function getFlavorText() {
+    return pht('Control access to groups of objects.');
+  }
+
+  public function getApplicationGroup() {
+    return self::GROUP_UTILITIES;
+  }
+
+  public function canUninstall() {
+    return true;
+  }
+
+  public function isPrototype() {
+    return true;
+  }
+
+  public function getRoutes() {
+    return array(
+      '/S(?P<id>[1-9]\d*)' => 'PhabricatorSpacesViewController',
+      '/spaces/' => array(
+        '(?:query/(?P<queryKey>[^/]+)/)?' => 'PhabricatorSpacesListController',
+        'create/' => 'PhabricatorSpacesEditController',
+        'edit/(?:(?P<id>\d+)/)?' => 'PhabricatorSpacesEditController',
+      ),
+    );
+  }
+
+  protected function getCustomCapabilities() {
+    return array(
+      PhabricatorSpacesCapabilityCreateSpaces::CAPABILITY => array(
+        'default' => PhabricatorPolicies::POLICY_ADMIN,
+      ),
+      PhabricatorSpacesCapabilityDefaultView::CAPABILITY => array(
+        'caption' => pht('Default view policy for newly created spaces.'),
+      ),
+      PhabricatorSpacesCapabilityDefaultEdit::CAPABILITY => array(
+        'caption' => pht('Default edit policy for newly created spaces.'),
+        'default' => PhabricatorPolicies::POLICY_ADMIN,
+      ),
+    );
+  }
+
+}