Add a new command for self verification.

[europ]

Issue type

Feature request.

Description

It would be nice if the OCI CLI could verify that everything was configured properly.

Currently this verification possibility is missing and we have to use other methods to check if the OCI CLI was correctly configured. For instance, I am using a dummy oci iam compartment list to check if the OCI configuration works (including authentification check).

Expectation

oci config verify
# OK
echo $?
# 0

[davidkhala]

Agree, and I am still using oci iam compartment list