Added prop for VButton component to make button labels uppercase. It uses text-transform css property which is better for screen readers. Change-Id: I2a771af954a3bb9846a58dac9c2a1769e13f6e5c
Updated onb CLI flow test. Updated tests to use aria-roledescription as selector. Change-Id: I1442592e1938fbe730064977dc9b78266e403706