Move batch creation to messaging system

[dfaller]

Move the batch creation process of creating jobs and recipes to the messaging system for scalability.

Look at removing the usage (where possible) of the batch_job and batch_recipe models in favor of the job and recipe batch_id field. If possible, consider a plan to remove the batch_job and batch_recipe models.

[dfaller]

Updates to command messages:

1. update_recipes - create job models that are ready, new recipes will create any jobs not already brought forward from superseded recipes, will now need to lock recipe models, punting on new recipe jobs pointing to superseded jobs because when doing recipe metrics will create one summary JSON field for recipe that holds metrics per job_name which will include superseded job IDs for use in creating new jobs
2. unpublish_jobs - new command message to perform job product unpublishing and superseding, make a comment in publish_job so that when we have multiple jobs per job_name, we appropriately unpublish/supersede products from superseded recipe when no direct superseded job link occurs
3. cancel_jobs - new command message to cancel jobs
4. process_recipe_input - new command message to process 100 recipes' input files, will send update_recipes messages
5. reprocess_recipes - new message that takes 100 recipes and supersedes them with new recipes, marks old recipe jobs as superseded, will need to create recipe_job models for jobs that are carried forward, sends process_recipe_input messages for new recipes and sends unpublish_jobs and cancel_jobs messages for superseded jobs

Update the batch creation logic to use the reprocess_recipes message.

The portion of the batch creation for new files will not be transitioned to use messaging. It will ultimately be replaced when batches are created from data sets.

[dfaller]

Updates for batch_job and batch_recipe models:

1. Stop creating batch_job and batch_recipe models.
2. Transition logic using the models to use the batch_id field in job and recipe models.
3. The batch_job and batch_recipe models will remain until we remove them from the database update.