v0.13.0-alpha.4

WIP 0.13.0

Changes

Core

• Add datapipe.metastore.TransformMetaTable. Now each transform gets it's own
  meta table that tracks status of each transformation
• Generalize BatchTransform and DatatableBatchTransform through
  BaseBatchTransformStep
• Add transform_keys to *BatchTransform
• Move changed idx computation out of DataStore to BaseBatchTransformStep
• Add column priority to transform meta table, sort work by priority
• Switch from vanilla tqdm to tqdm_loggable for better display in logs
• TableStoreFiledir constructor accepts new argument fsspec_kwargs
• Add filters, order_by, order arguments to *BatchTransformStep
• Add magic injection of ds, idx, run_config to transform function via
  parameters introspection

CLI

• Add step reset-metadata CLI command
• Add step fill-metadata CLI command that populates transform meta-table with
  all indices to process
• Add step run-idx CLI command
• CLI step run_changelist command accepts new argument --chunk-size
• New CLI command table migrate_transform_tables for 0.13 migration

Execution

• Executors: datapipe.executor.SingleThreadExecutor,
  datapipe.executor.ray.RayExecutor

Deployment

• Add helm chart for running regular loops in k8s as CronJob

Bugfixes

• Fix QdrantStore.read_rows when no idx is specified