This commit enables bash completion for Unified Software Management
commands using argcomplete module.
Test Plan:
[PASS] Build and install the iso
[PASS] Test bash completion for software commands
Story: 2010676
Task: 48540
Depends-On: https://review.opendev.org/c/888955
Signed-off-by: Jessica Castelino <jessica.castelino@windriver.com>
Change-Id: Id1d404ff48029c61040f2f137b0169d5ac6919d6
f29561900f