Add playbooks for building compute gpu and base node images.

This PR will add playbooks that contains roles specific to build images for a base compute and cpu node.

ansible/node-compute.yml

+---
+- name: Run a play
+  ansible.builtin.import_playbook: node.yml
+  
+- name: Setup node for use as a virtual compute node
+  hosts: default
+  become: true
+  roles:
+    - { name: 'compute_packages', tags: 'compute_packages' }
+    - { name: 'pam_slurm_adopt', tags: 'pam_slurm_adopt' }