Daniel Bunting

Support for DeltaLake Delta Tables

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**Is your feature request related to a problem? Please describe.** The Delta table format https://docs.delta.io/latest/index.html is commonly used with Spark/Databricks, there is some support for it currently via the `reader_method`...

fix: Import error when calling get_feature_view for feature views with SparkSource

1

Fixes #3872 Add import guard around SparkSession import so the registry can be loaded in environments without PySpark installed **What this PR does / why we need it**: **Which issue(s)...

## Expected Behavior It should be possible to query the registry to read feature metadata using get_feature_view etc in an environment that doesn't necessarily have the offline datasource compute set...