add terraform for utility cluster. Add name override to gke (#30847)

* add terraform for utility cluster. Add name override to gke

* remove whitespace

* add strimzi version and fix prefix

* add more explanation on the purpose

* add node_config block for oauth scopes

* move oauth to auto_provisioning_defaults

* move stimzi operator to separate module. Remove utility cluster module and implement as var file

* add beam-utility tfvars file

* Refactor https://github.com/apache/beam/pull/30847

* add name override. add utility vars and backend

* tfbackend file asf licence

* tfbackend file asf licence

* add readme usage

* remove whitespace

* move kafka to 01-strimzi-operator, rename cluster

* remove beam-utility files