-numerous changes to work with Raspbian 10

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

roles/vnc/tasks/main.yaml

@@ -1,17 +1,23 @@
----
-- name: enable vnc service and ensure it is not masked
-  become: true
-  systemd:
-          name: vncserver-x11-serviced.service
-          enabled: yes
-          masked: no
-          state: restarted
-  tags: enable_vnc
-- name: copy vnc configuration with password
-  become: true
-  copy:
-          src: "{{ role_path }}/files/vncserver-x11"
-          dest: /root/.vnc/config.d/vncserver-x11
-          owner: root
-          group: root
-  tags: vnc_config
+---
+- name: enable vnc service and ensure it is not masked
+  become: true
+  systemd:
+          name: vncserver-x11-serviced.service
+          enabled: yes
+          masked: no
+          state: restarted
+  tags: enable_vnc
+- name: copy vnc configuration with password
+  become: true
+  copy:
+          src: "{{ role_path }}/files/vncserver-x11"
+          dest: /root/.vnc/config.d/vncserver-x11
+          owner: root
+          group: root
+  tags: vnc_config
+- name: set lxde in .xsession
+  lineinfile:
+    path: /home/pi/.xsession
+    line: lxsession -s Lubuntu -e LXDE
+    create: yes
+