[minor] DRO installation using cli command

[MrunaliniKankariya2]

This PR includes changes for DRO installation. It has following changes

1. mas install will install DRO with mas core installation, which will need 4 parameters email, firstname, lastname and token
2. mas update will check for existing UDS installation. If found it will ask user if UDS need to uninstall and DRO should be installed. If user say 'yes' then UDS will be uninstalled and DRO installed else only DRO will be installed
3. mas unistall should also uninstall DRO
   Testing done:
   I have tested installation and update on cluster - https://console-openshift-console.apps.mas-core-plg.cp.fyre.ibm.com/k8s/ns/mas-drotest-pipelines/tekton.dev~v1beta1~PipelineRun/drotest-upgrade-mz7kf/logs

[whitfiea]

@MrunaliniKankariya2 is this still a draft as per the PR first description? Can you edit this first description to say what this change does and what testing you have done? Also the title says migration but the description says install and uninstall

[lokesh-sreedhara]

@MrunaliniKankariya2 can u resolve the conflicts? can u sync up with Yuvraj about the latest changes? We decided to add a new variable called BAS_ACTION , which allows the users to install either uds or dro . can u make similar changes to cli to accept either uds or dro options?

hari and me reviewed this PR, i think here uds is being replaced by dro. can we have both install options instead?