Allow overriding preferred refresh rate, resolution and connection

for xrandr_facts module. You can set own preferences e.g. in a
host_vars/localhost.yml using the variables preferred_refreshrates,
preferred_resolutions and preferred_outputs (see
roles/yavdr-xorg/default/main.yml for default values).

roles/yavdr-xorg/tasks/detect-xorg.yml

@@ -86,7 +86,10 @@
     timeout: 3
 
 - name: "detect xorg configuration"
-  action: xrandr_facts
+  xrandr_facts:
+    preferred_refreshrates: '{{ preferred_refreshrates }}'
+    preferred_resolutions: '{{ preferred_resolutions }}'
+    preferred_outputs: '{{ preferred_outputs }}'
 
 - debug:
     var: xorg.primary