Symlink icons (#1416) (#3826)

* Updated vendor code for code.gitea.io/git

* Display symlinks correctly for files and directories

* Added symlink tests

* Applied silverwinds stylesheet patch

Signed-off-by: Tris Forster <tris.git@shoddynet.org>

models/fixtures/repo_unit.yml

@@ -67,3 +67,10 @@
   type: 5
   config: "{}"
   created_unix: 946684810
+
+-
+  id: 11
+  repo_id: 31
+  type: 1
+  config: "{}"
+  created_unix: 1524304355