Simplify hab pkg download output
Simplify hab pkg download output

The current output is redundant and is difficult to use in narrow
console windows.

This PR removes some redundant messages, shortens lines, and generally
cleans up the output. I've tested it and it looks good in 80
columns.

closes #7056

Signed-off-by: Mark Anderson <f1b5a91d4d6ad523f2610114591c007e75d15084@chef.io>

rsertelon/habitat,rsertelon/habitat,habitat-sh/habitat,habitat-sh/habitat,habitat-sh/habitat,rsertelon/habitat,rsertelon/habitat,rsertelon/habitat,habitat-sh/habitat,rsertelon/habitat,habitat-sh/habitat,habitat-sh/habitat,rsertelon/habitat,habitat-sh/habitat,habitat-sh/habitat