Web.MastodonAPI.AccountView: Add is_moderator and is_admin

Closes: https://git.pleroma.social/pleroma/pleroma/issues/557

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -112,7 +112,9 @@ defp do_render("account.json", %{user: user} = opts) do
       # Pleroma extension
       pleroma: %{
         confirmation_pending: user_info.confirmation_pending,
-        tags: user.tags
+        tags: user.tags,
+        is_moderator: user.info.is_moderator,
+        is_admin: user.info.is_admin
       }
     }
   end

test/web/mastodon_api/account_view_test.exs

@@ -61,7 +61,9 @@ test "Represent a user account" do
       },
       pleroma: %{
         confirmation_pending: false,
-        tags: []
+        tags: [],
+        is_admin: false,
+        is_moderator: false
       }
     }
 
@@ -102,7 +104,9 @@ test "Represent a Service(bot) account" do
       },
       pleroma: %{
         confirmation_pending: false,
-        tags: []
+        tags: [],
+        is_admin: false,
+        is_moderator: false
       }
     }