App-gen-tool fails to create plugins wheels

[Daniel Marques Caires]

Brief Description
-----------------
While using the app genetor found on https://opendev.org/starlingx/app-gen-tool, due to incorrectly creating the setup.py and setup.cfg files, the app-gen-tool does not create the plugins wheels even though it shows that the packaging was successful.

Severity
--------
Critical: System/Feature is not usable due to the defect

Steps to Reproduce
------------------
Run the app-gen-tool passing an input file

Expected Behavior
------------------
The packaged application is generated with all necessary files

Actual Behavior
----------------
The packaged application is missing the plugins wheels

Reproducibility
---------------
Reproducible

Workaround
----------
The generator can be run passing the flag --no-package, then fix the setup.py and setup.cfg files and finally run the generator passing the --package-only flag.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/app-gen-tool/+/903998

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/app-gen-tool/+/903998
Committed: https://opendev.org/starlingx/app-gen-tool/commit/d5b9f694481204c97eb726921734878ed99f9ef1
Submitter: "Zuul (22348)"
Branch: master

commit d5b9f694481204c97eb726921734878ed99f9ef1
Author: Daniel Caires <email address hidden>
Date: Tue Dec 19 13:12:28 2023 -0300

    Fix plugin packaging

    Fix the creation of the setup.py file.
    Fix the creation of the setup.cfg file
    Add a check to see if the .whl file was created

    Test Plan:
    PASS - setup.py successfully created
    PASS - setup.cfg successfuly created
    PASS - Code check for the existence of the wheels file

    Closes-Bug: 2046559

    Change-Id: I8c823302e57a797041efb69f303c251d333c5eee
    Signed-off-by: Daniel Caires <email address hidden>