v0.22.0

What's Changed

• Completely overhauled integration with Symfony Profiler - see docs for more details
• Actions created by the ActionsColumnType now contains a valid reference to their data table
• Columns created by the CollectionColumnType now contains a valid reference to their data table, and each nested column is now named by their index (0, 1, 2, etc.) instead of generic and non-unique __name__
• Two new data table events - PRE_INITIALIZE and POST_INITIALIZE

Full Changelog: v0.21.4...v0.22.0