Download pip so that it can be installed in stage 2, here and at IronBank
Download pip so that it can be installed in stage 2, here and at
IronBank

Signed-off-by: Robert Prince <d9b34157691e7da60641baaf8d2175a488c0677f@anchore.com>

anchore/anchore-engine,anchore/anchore-engine,anchore/anchore-engine