* backport migration EE code structure
* filesystem copy function
* set db status to updating before migration - reset on completion
* support for auto-backup on version upgrade
* - rollback cli flag support (with confirmation)
- rollback implementation backport from EE
* removed edition as it is not required in CE
* migrated test datastore from bolttest to bolt package to make it usable for testing
* backported failsafe migration
* - backported tests from EE
- refactored tests to use test datastore
* test store implementing datastore interface
* addressed PR issues/improvements
* refactor test
* added backup file removal error logging
* resolved conflicts, updated code
* fixed missing bolttest package - migrated to bolt
* feat(migration): wrap migration errors to provide context for failure EE-1742 (#5711)
* feat(migrator): wrap errors to provide more context to failures EE-1742
* add overall failure back in. diff log file
* updated helm tests pointing to correct teststore
Co-authored-by: Matt Hook <hookenz@gmail.com>
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