Fix 'UnicodeDecodeError' issue

Fixes [lukearran#36](lukearran#36)

TimeToTrakt.py

@@ -82,7 +82,7 @@ def init_trakt_auth() -> bool:
 
 
 def process_watched_shows() -> None:
-    with open(WATCHED_SHOWS_PATH, newline="") as csvfile:
+    with open(WATCHED_SHOWS_PATH, newline="", encoding="UTF-8") as csvfile:
         reader = csv.DictReader(csvfile, delimiter=",")
         total_rows = len(list(reader))
         csvfile.seek(0, 0)