Enhancement of openshift provision and enable addon support

[praveenkumar]

Currently we only have persistent volume addon supported as part of openshift provision which is not enough for user experience we need different addon support which also plugged to VSM which will give a better user experience.

$ ./openshift_provision -h
usage: openshift_provision [-h] [-s SETUP] [-a ADDON [ADDON ...]]

CLI to provision OpenShift for different usecase

optional arguments:
  -h, --help            show this help message and exit
  -s SETUP, --setup SETUP
                        OpenShift basic Setup
  -a ADDON [ADDON ...], --addon ADDON [ADDON ...]
                        Enable an addon (persistent volume), cockpit, metrix, logging
                        $ openshift_provision -a pv <number_of_pv> <size_of_pv> default(3, 1Gb)
                        $ openshift_provision -a cockpit
                        $ openshift_provision -a metrix
                        $ openshift_provision -a logging