[RFE] Make OpenStack Support Configurable

[sadsfae]

Is your feature request related to a problem? Please describe.

Not all environments running QUADS (or adopting it) may care about OpenStack conveniences like the generation/maintenance of the instackenv.json file or additional move_and_rebuild_host.py Badfish activities like enforcing boot order.

Describe the solution you'd like

We should provide the following option in /opt/quads/conf/quads.yml

enable_openstack_features: false

If false then the following will be skipped:

1. generation of instackenv.json
2. running of badfish boot order enforcement for Dells or SUPPORTED (in config.py)

If true then everything remains the same.

The default should be false

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.