slcli vs upgrade Flavor support

[allmightyspiff]

Depreciate the cpu/mem/ params, and change them to flavor support

[allmightyspiff]

Also, depreciate those non-flavor ordering options as well.

[allmightyspiff]

TODO: Add a warning that ordering / upgrading non-flavor vsis will be disabled at some distant point in the future.

Something like

warnings.warn("Non-Flavor VSI are depreciated.", DeprecationWarning)