Letterboxd userscript support

couchpotato/core/providers/userscript/letterboxd/__init__.py

@@ -0,0 +1,6 @@
+from .main import Letterboxd
+
+def start():
+    return Letterboxd()
+
+config = []

couchpotato/core/providers/userscript/letterboxd/main.py

@@ -0,0 +1,6 @@
+from couchpotato.core.providers.userscript.base import UserscriptBase
+
+
+class Letterboxd(UserscriptBase):
+
+    includes = ['*://letterboxd.com/film/*']