Move Migrate Run commands in Drush core

[claudiu-cristea]

Fixes #2926. Development started in #3402.

Status of porting changes from Migrate Tools since #3402

• Using '--limit' with '--feedback' on import does not work: Already fixed in Add the migrate runner commands #3402. However, I've added a regression test ::testImportingWithLimitAndFeedback().
• Implement --idlist options on rollback and messages and followups #2955032, #3038549: Implemented with the exception of messages command option, which doesn't work in Migrate Tools either. We can fill a followup if --idlist is needed for messages. Also, --idlist-delimiter was not added because: (1) the name is misleading, actually it refers to the delimiter of columns from the same ID but the name could make you think that is the delimiter between IDs and (2) I don't think there's a real use case to use something different than colon ':'. But if there is a real need, we need a better name and understand that edge case.
• using drush mi --update flags all rows as needing an update, even if used in conjunction with an --idlist filter: Fixed, added regression test ::testImportingWithUpdateAndIdlist().
• Unset the key_value "migrate_last_imported" on MigrateEvents::POST_ROLLBACK: Fixed, added test coverage.
• Symfony Console Error "Cannot add a required argument after an optional one" on migrate:status: Already fixed in Add the migrate runner commands #3402.
• Drush migrate-import should return a non-zero exit code when migration fails: Already fixed in Add the migrate runner commands #3402.
• The "--limit" option does not accept a value: Fixed all commands options defaults.
• Remove $sourceId workaround on prepareRow now that issue is fixed: Fixed.
• use Symfony Console's progress bar: Fixed, added test coverage.
• Migrate support for deleting items no longer in the incoming data: Implemented but used a slightly different approach and used the rsync style --delete option instead of --sync.
• If getMessageIterator() includes useful IDs, don't print the source_ids_hash column in drush mmsg command: Fixed.

Follow-ups

• [needs decision] Add continue-on-failure option: I'm not sure that such an option should exist. To be decided!
• [needs scope clarification] 'status' is not a log level: It wasn't clear for me the scope of this issue.
• Convert functional MigrateRunnerTest to integration tests #4622: Convert functional MigrateRunnerTest to integration tests

[weitzman]

Quick initial review. Thanks for your hard work on this.

[weitzman]

Should we add a composer conflict with migrate_tools module <=5? Would prevent some chaos around duplicate commands being declared.

[claudiu-cristea]

Should we add a composer conflict with migrate_tools module <=5? Would prevent some chaos around duplicate commands being declared.

Good point. I've added also "drupal/migrate_run": "*" as this is a full replacement.

[weitzman]

Thanks @claudiu-cristea. Great work.