Merge pull request #8790 from metabase/snowflake-support

.circleci/config.yml

project.clj

src/metabase/driver/snowflake.clj

test/metabase/driver/snowflake_test.clj

.../metabase/query_processor/middleware/format_rows_test.clj

...abase/query_processor/middleware/parameters/mbql_test.clj

...tabase/query_processor/middleware/parameters/sql_test.clj

test/metabase/query_processor_test/date_bucketing_test.clj

test/metabase/query_processor_test/expressions_test.clj

test/metabase/query_processor_test/filter_test.clj

test/metabase/query_processor_test/time_field_test.clj

test/metabase/query_processor_test/unix_timestamp_test.clj

test/metabase/test/data/snowflake.clj