• BREAKING CHANGE: move all reader options from the top-level batch_kwargs object to a sub-dictionary called
  "reader_options" for SparkDFDatasource and PandasDatasource. This means it is no longer possible to specify
  supplemental reader-specific options at the top-level of get_batch, yield_batch_kwargs or build_batch_kwargs
  calls, and instead, you must explicitly specify that they are reader_options, e.g. by a call such as:
  context.yield_batch_kwargs(data_asset_name, reader_options={'encoding': 'utf-8'}).
• BREAKING CHANGE: move all query_params from the top-level batch_kwargs object to a sub-dictionary called
  "query_params" for SqlAlchemyDatasource. This means it is no longer possible to specify supplemental query_params at
  the top-level of get_batch, yield_batch_kwargs or build_batch_kwargs
  calls, and instead, you must explicitly specify that they are query_params, e.g. by a call such as:
  context.yield_batch_kwargs(data_asset_name, query_params={'schema': 'foo'}).
• Add support for filtering validation result suites and validation result pages to show only failed expectations in
  generated documentation
• Add support for limit parameter to batch_kwargs for all datasources: Pandas, SqlAlchemy, and SparkDF; add support
  to generators to support building batch_kwargs with limits specified.
• Include raw_query and query_params in query_generator batch_kwargs
• Rename generator keyword arguments from data_asset_name to generator_asset to avoid ambiguity with normalized names
• Consistently migrate timestamp from batch_kwargs to batch_id
• Include batch_id in validation results
• Fix issue where batch_id was not included in some generated datasets
• Fix rendering issue with expect_table_columns_to_match_ordered_list expectation
• Add support for GCP, including BigQuery and GCS
• Add support to S3 generator for retrieving directories by specifying the directory_assets configuration
• Fix warning regarding implicit class_name during init flow
• Expose build_generator API publicly on datasources
• Allow configuration of known extensions and return more informative message when SubdirReaderGenerator cannot find
  relevant files.
• Add support for allow_relative_error on internal dataset quantile functions, and add support for
  build_continuous_partition_objec in Redshift
• Fix truncated scroll bars in value_counts graphs