Add .ics file for eM Client recurring task

Tasks doesn't handle multiple entries in one file yet

app/src/test/resources/eMclient/completed_recurring_task.txt

@@ -0,0 +1,29 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//MailClient.VObject/8.0.3385.0
+BEGIN:VTODO
+DTSTAMP:20200909T142504Z
+UID:3884083942925614120
+CREATED:20200909T142419Z
+LAST-MODIFIED:20200909T142504Z
+SUMMARY:Repeat
+RRULE:FREQ=DAILY
+X-APPLE-SORT-ORDER:621354239
+DUE:20200910T000000
+DTSTART:20200910T000000
+PERCENT-COMPLETE:0
+END:VTODO
+BEGIN:VTODO
+RECURRENCE-ID:20200910T000000
+UID:3884083942925614120
+DTSTART:20200910T000000
+DUE:20200910T000000
+COMPLETED:20200909T142504Z
+PERCENT-COMPLETE:100
+LAST-MODIFIED:20200909T142504Z
+DTSTAMP:20200909T142504Z
+CREATED:20200909T142504Z
+SUMMARY:Repeat
+STATUS:COMPLETED
+END:VTODO
+END:VCALENDAR