Description:

Generates a new job. Pass the job name, either CamelCased or
under_scored, with or without the job postfix.

Examples:

`bin/rails generate job checkout`

  Creates the following files:

    Job:   app/jobs/checkout_job.rb
    Test:  test/jobs/checkout_job_test.rb

`bin/rails generate job send_sms --queue=sms`

  Creates a job and test with a custom sms queue.

`bin/rails generate job process_payment --parent=payment_job`

  Creates a job and test with a `PaymentJob` parent class.