Commands with list of output items should allow multiple formats

[mbtamuli]

For example ee site info should allow output in different formats like yaml,json. This should happen to maintain parity with the other commands like ee site list, ee auth list global

Example:

ee site list --format=table
ee site list --format=json
ee auth list global --format=table
ee auth list global --format=json

Now,

# This works
ee site info example.com
# This doesn't work
ee site info example.com --format=json