* Pass BOOL values as real types (int/bool) instead of strings to SQL parameters.
Fixes following integration tests when running with Spanner:
* TestIntegrationDataAccess
* GetDataSourcesByType/Get_prunable_data_sources
* TestIntegrationUserAuthToken:
* expires_correctly
* can_properly_rotate_tokens
* keeps_prev_token_valid_for_1_minute_after_it_is_confirmed
* Fix more places where "true" or "false" string was passed as query parameter instead of bool value.
* Removed unit test because it brought unwanted dependencies on xorm into multiple modules.
* Adds ability to run integration tests against spanner (by using GRAFANA_TEST_DB=spanner env variable. SPANNER_DB variable then specifies database to use: spannertest, emulator or string like /projects/<project>/instances/<instance>/databases/<db>)
* Adds feature to migration dialects to create database from a snapshot, instead of running individual migrations.
* Adds first version of Spanner snapshot, prepared from "OSS" migrations.
* Uses generated bit-reversed-positive values instead of auto_increment. (As an experiment)
* make it build and start
* run some migrations
* add build tags, remove log
* remove unused code
* revert go.mod changes
* move initialisation into dialect file
* update workspace
* update workspace once again
* clean up dependencies
* further cleanup
* Address some review feedback.
* Fix go.sum.
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Co-authored-by: Peter Štibraný <pstibrany@gmail.com>
