1. Created a new celery queue with key `SOFTWARE_SECURE_VERIFICATION_ROUTING_KEY`.
2. Added a celery task with retry logic.
3. sorted imports with isort.
4. Changed deprecated `log.warn` => `log.warning`.
Previously Verfication status emails are sent using sail-thru.Now,
Separate templates are added in the platform that will be used to
sent status emails to the learners.
LEARNER-5931
Support needs to inform a learner different states of its
id-verification.In order to achieve it email will be sent
to learner about its verification state using sailthru.
LEARNER-617
This reworks what was done #17930, since it had to be reverted from the IDVerificationAggregate migration.
We decided to abandon that model and directly read from both id verification models.
Support Team need to handle bulk of tickets every month about the
verification status of learners.To avoid it,suitable changes have
done to send verification email to the learner.
LEARNER-1487
Support Team need to handle bulk of tickets every month about
the verification status of learners.To avoid it,suitable changes
have done to send verification email to the learner.
LEARNER-1487
