Add role for epgd

This is an initial draft. Many thanks to
minixjr (https://www.vdr-portal.de/forum/index.php?thread/131575-yavdr-ansible/&postID=1313526#post1313526).

TODOs:
 - seperate role(s) for vdr-plugin-epg2vdr and scraper2vdr
 - configure epg2vdr and scraper2vdr
 - allow to use a seperate MySQL/MariaDB server instead of a local one

roles/epgd/defaults/main.yml

@@ -0,0 +1,40 @@
+---
+# file: roles/epgd/defaults/main.yml
+
+epgd_dbhost: localhost
+epgd_dbport: 3306
+epgd_dbname: epg2vdr
+epgd_dbuser: epg2vdr
+epgd_dbpass: epg
+epgd_epgview: eventsview.sql
+epgd_epgviewweb: eventsviewplain.sql
+epgd_thetvdbview: thetvdbview.sql
+epgd_checkinitial: 1
+epgd_daysinadvance: 8
+epgd_daystoupdate: 4
+epgd_updatetime: 12
+epgd_updatethreshold: 500
+epgd_xmlstoretofs: 0
+epgd_getepgimages: 1
+# EpgImageSize
+# 0 = 174x130
+# 1 = 329x245
+# 2 = 525x400
+epgd_epgimagesize: 2
+epgd_maximagesperevent: 1
+epgd_seriesenabled: 1
+epgd_seriesport: 2006
+epgd_seriesstoretofs: 0
+epgd_seriesurl: www.eplists.de
+epgd_scrapepg: 1
+epgd_scrapRecordings: 1
+#epgd_scrapmoviedbapikey: ""
+epgd_cachepath: /var/cache/epgd/
+epgd_epghttpd_port: 9999
+#epgd_httpproxy: 127.0.0.1:8000
+epgd_httpproxy_username: ""
+epgd_httpproxy_password: ""
+epgd_LogLevel: 1
+epgd_epgdata_url: http://www.epgdata.com
+epgd_epgdata_pin: insert-your-pin-here
+epgd_epgdata_timeout: 180