#3158)

* Merged in my work from #3135:

1. added documentation
2. using helper function _create_bigquery_engine with gcp project environment variable
3. added bigquery specific list in candidate_test_is_on_temporary_notimplemented_list_cfe
4. removed bigquery specific test files, so we can just use the already existing ones (along with bigquery specific notimplemented list per #3)

* enabled the expect_column_values_to_be_unique test, which passes now with Will's changes

Add content on table expiration

* develop:
  [DOCS] Apply Docusaurus tabs to relevant pages in new docs
  [FEATURE] Implement MulticolumnMapExpectation class (#3134)
  [FEATURE] add python3.9 to python versions (#3143)
  [FEATURE]/MER-16/MER-75/add_route_for_validation_result (#3090)
  [BUGFIX] Enable `--v3-api suite edit` to proceed without selecting DataConnectors (#3165)
  Error messages must be friendly. (#3171)
  [FEATURE] Implement the MulticolumnSumEqual Metric for PandasExecutionEngine (#3130)
  [BUGFIX] allow reader_options in the CLI so can read `.csv.gz` files (#2695)
  [BUGFIX] Fix error when `RuntimeBatchRequest` is passed to `SimpleCheckpoint` with `RuntimeDataConnector` (#3152)
  [FEATURE] Enable BigQuery tests for Azure CI/CD (#3155)
  [MAINTENANCE] Improve Coding Practices in "great_expectations/expectations/expectation.py" (#3151)
  [BUGFIX] Snowflake connections are closed correctly by DOCS tests  (#3104)
  PMrelease-prep-20201-07-29 (#3144)
  [MAINTENANCE] Adhere to formalism: Use the defined Enum types for domain_type specification, and string key names for domain keys (#3146)

This reverts commit ce7ff46.

This reverts commit 1f17e36.

* develop:
  [FEATURE] Update ExpectCompoundColumnsToBeUnique for V3 API (#3161)
  [DOCS] Add `conda` as installation option in README (#3196)
  [BUGFIX] Restore support for V2 API style custom expectation rendering (#3179)
  [BUGFIX] Fixes an error with expect_column_values_to_be_dateutil_parseable (#3190)
  [FEATURE] Set foundation for Azure-related DataConnectors (#3188)
  Update changelog. (#3189)
  Update validate_your_data.md (#3185)
  [BUGFIX] Fix incorrect usage of "all()" in the comparison of validation results when executing an Expectation (#3178)
  [BUGFIX] Remove fixture parameterization for Cloud DBs (Snowflake and BigQuery) (#3182)
  [DOCS] Update BigQuery docs to clarify the use of temp tables (#3184)
  [MAINTENANCE] Add `credentials` YAML key support for `DataConnectors` (#3173)
  release-prep-2021-08-05 (#3181)
  [DOCS] Improve Core Concepts - Expectation Concepts (#2831)
  Implement the "compound_columns_unique" metric for PandasExecutionEngine (with a unit test). (#3159)
  [FEATURE] Support row_condition and ignore_row_if Directives Combined for PandasExecutionEngine (#3150)
  Update test_script_runner.py (#3177)
  [DOCS] Capitalize python to Python in docs (#3176)
  [FEATURE] Update ExpectMulticolumnSumToEqual for V3 API (#3136)

…r-expectations

…r-expectations

…r-expectations

This reverts commit 7a06de4.

This reverts commit 3f1ba9e.

…r-expectations

…r-expectations

…r-expectations

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

Co-authored-by: John DiMatteo <jdimatteo@verily.com>

This reverts commit c25846d.

…ntion and dataset cleanup (#3259)

* remove duplicate inconsistent logic around bigquery dataset
* consistently provide a default value and document how to override
* Make BigQuery SqlAlchemy dialect conform to "dialect" attribute convention

…r-expectations

…r-expectations

* develop:
  [BUGFIX] Fix deprecation warning for importing from collections (#3228)
  [FEATURE] Add schema validation for different GCS auth methods (#3258)