Migrate organizations from Chef Server to Automate

[kalroy]

User Story

As an Automate user, I should be able to have the functionalities:

• Create a button in the server details page to sync chef servers #6556
• Add a slider model which gives ability to upload compressed file #6557
• Build an HTTPS API in Gateway to upload the compressed file #6558
• Build a GRPC service in Infra proxy to initiate the migration #6559
• Show the migration acknowledgement to the user #6560
• Modify the Get Server API to provide active migration id and status #6561
• Create a parsing pipeline to parse the zip file content #6562
• Create a pipeline to store the parsed data to database #6563
• Add a pipeline function to unzip the file #6624
• Add a pipeline function validate the zip file content #6625
• Add a pipeline function to parse the org file #6626
• Add a pipeline function to store the parsed stage file #6627
• Add a API to fetch the staged data from DB #6629
• Create the Preview screen model to show the migrating orgs #6630
• Add an API to cancel the migration #6631
• Add a pipeline function to store the orgs to database #6628
• Add a pipeline function to set the status of migration to complete #6632
• Add a migration table to keep track of the migrations #6348
• Add the scripts for parsed data and storage functions for all migration phases #6377
• Add an API to fetch the status of the migration #6378
• Only allow a single migration to happen at a time for Chef Server #6379
• Associate project for every organisation fetched #6380
• Show the message in the UI till the organisation is being fetched #6381

Definition of Done

Demo Script / Repro Steps