Fix snowflake identifiers; include Database in QP Store

src/metabase/driver/bigquery.clj

src/metabase/driver/druid/query_processor.clj

src/metabase/driver/generic_sql.clj

src/metabase/driver/generic_sql/query_processor.clj

src/metabase/driver/h2.clj

src/metabase/driver/hive_like.clj

src/metabase/driver/mongo.clj

src/metabase/driver/presto.clj

src/metabase/driver/snowflake.clj

src/metabase/query_processor.clj

src/metabase/query_processor/middleware/resolve_database.clj

src/metabase/query_processor/store.clj

test/metabase/test/data/snowflake.clj