Replace build-images role to oooci-build-images role

Problem Statement

build-images: An ansible role for building undercloud and overcloud images using python-tripleoclient or using libguestfs-tools inside a libvirt guest inside an isolated environment.
oooci-build-images: An ansible role for building overcloud images using python-tripleoclient.

build-images: It is used in featureset 002 till train release on CentOS-7 based jobs.
- In invoke this role, we use to_build: true in featureset 002 - https://opendev.org/openstack/tripleo-quickstart/src/branch/master/config/general_config/featureset002.yml#L13
  - then it triggers this playbook
    - https://opendev.org/openstack/tripleo-quickstart-extras/src/branch/master/playbooks/baremetal-full-undercloud.yml#L38
  - Once image build finishes then images are consumed in fs02 deployment
  - Once the deployment passes, then we create the undercloud image from overcloud before uploading the image to image server here on libvirt guest here using convert-image role
    - https://github.com/rdo-infra/review.rdoproject.org-config/blob/master/ci-scripts/tripleo-upstream/convert-upload-undercloud.sh#L18
    - https://opendev.org/openstack/tripleo-quickstart/src/branch/master/roles/convert-image
oooci-build-images: we have seperate jobs for building overcloud and ipa images
- periodic-tripleo-centos-8-buildimage-ironic-python-agent-master
- periodic-tripleo-centos-8-buildimage-overcloud-full-master
- Once the images are built, they are pushed to image server (https://images.rdoproject.org) and then consumed in ovb jobs like fs01 and fs020

Building the overcloud images is common in both roles using python-tripleoclient.
- That brings code duplicacy and maintaince of same stuff at two places. So we want to re-use oooci-build-images role in build-images role to avoid duplicacy.

Make sure oooci-build-images works for all the supported releases.
- It means it should work on both C7 and C8 based jobs
- Building overcloud images can be enabled via to_build flag

What to do with featurset002 for master centos-8 job?
in build-images role, building overcloud images using libguestfs tool is there, but not tested anywhere, what to do with that?
in fs02, during post deployment, we build undercloud images from overcloud before uploading the image to image server do we want to continue that?
- https://github.com/rdo-infra/review.rdoproject.org-config/blob/master/ci-scripts/tripleo-upstream/convert-upload-undercloud.sh#L18