Warn about tags with a literal star value

This usually indicates someone took the wiki or a validator a bit too literal.

plugins/TagFix_BadValue.py

@@ -125,7 +125,7 @@ def check(self, data, tags, check_list_open):
                 err.append({"class": 3040, "subclass": stablehash64(k), "text": T_("Concerns tag: `{0}`", '='.join([k, tags[k]])) })
 
         for k in keyss:
-            if tags[k] == "unknown":
+            if tags[k] in ("unknown", "*"):
                 err.append({"class": 40613, "subclass": stablehash64(k), "text": T_("Concerns tag: `{0}`", '='.join([k, tags[k]])) })
 
         return err