adding python3-jinja2 package deployment for RHEL

roles/deploy-xorg/tasks/main.yml

 ---
+- name: install dependencies
+  yum:
+    name: python36-jinja2
+    enablerepo: epel
+    state: present
+  become: true
+  when: ansible_os_family=="RedHat"
+
 - name: create /opt/generate-xorg and template dirs
   become: yes
   file:
@@ -41,7 +49,7 @@
 - name: deploy desktop related packages
   package:
     name:
-      - python-is-python2 # compatibility package for get-xorg.py
+      #- python-is-python2 # compatibility package for get-xorg.py
       - python-tk #this is to get the Desktop Walltime script to work
       - python-pexpect #this is to make the ansible expect module work
     state: present