-numerous changes to work with Raspbian 10

-redo of some roles, particularly GUI
-modifications to support working from a "Raspbian Lite" install

roles/sipclient/tasks/main.yaml

@@ -1,20 +1,20 @@
----
-- name: enable sip client
-  become: true
-  cron:
-          name: "sip client"
-          minute: "*/30"
-          hour: "8-18"
-          weekday: "1-5"
-          job: "/usr/bin/perl -e 'sleep int rand 1800' && /home/pi/sipp/startclient.sh"
-          user: root
-  tags: sipclient_cron
-- name: stop sip calling after hours
-  become: true
-  cron:
-          name: "stop sip client"
-          hour: "17"
-          weekday: "1-5"
-          job: "/usr/bin/perl -e 'sleep int rand 1800' && /home/pi/sipp/stopclient.sh"
-          user: root
-  tags: sipclient_stop
+---
+- name: enable sip client
+  become: true
+  cron:
+          name: "sip client"
+          minute: "*/30"
+          hour: "8-18"
+          weekday: "1-5"
+          job: "/usr/bin/perl -e 'sleep int rand 1800' && /home/pi/sipp/startclient.sh"
+          user: root
+  tags: sipclient_cron
+- name: stop sip calling after hours
+  become: true
+  cron:
+          name: "stop sip client"
+          hour: "17"
+          weekday: "1-5"
+          job: "/usr/bin/perl -e 'sleep int rand 1800' && /home/pi/sipp/stopclient.sh"
+          user: root
+  tags: sipclient_stop