rht/ocp-ing-ichp-materials: Playbooks and other exercise collaterals for ING ICHP training @ 24895af61e11510c8d80db06eaef1c5285e38ac2

Grega Bremec 24895af61e update variable structure, add tasks to create users		1 mesiac pred
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roles	24895af61e update variable structure, add tasks to create users	1 mesiac pred
ansible.cfg	5ba72150ed copy and adapt playbook and roles to current env	1 mesiac pred
inventory.yml	3a7cb9a593 add capability to remove rhbk, complete templating to allow any number of clients	1 mesiac pred
pre-flight.yml	0d78520522 add initial rhbk deployment role and vars	1 mesiac pred