rht/ocp-ing-ichp-materials: Playbooks and other exercise collaterals for ING ICHP training @ 31c3ca80c0a673ebe2e77fb2bb306a0ad5f18d9f

Grega Bremec bbf2ca97f0 remove operator namespace if so requested		4 napja
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check-env	5ba72150ed copy and adapt playbook and roles to current env	5 napja
fix-operators	63bb4462f2 add do370 catalog to list of removed	5 napja
remove-operators	bbf2ca97f0 remove operator namespace if so requested	4 napja