Fix: Error handling during prometheus collector registration

Propagate registration error (#34)

Update documentation, Fix query updates

Simplify declaration of Metric array (#23)
Smaller docker images and go.mod support (#26) …
Add example config and fix stat update (#31) …
Update README and add example configuration (#32) …

Use canonical prometheus exporter port (and code cleanup)

This release represents significant code health cleanup, 100% test coverage, and new flags. Queries are updated in parallel rather than serially. Updates include:

Fix comment for valToString (#15)
Update bqx package names (#17)
Complete test coverage of collector (#19)
Add internal setup package for managing file loading and registration (#18)
Complete test coverage for query package (#20)
Update main to use setup.File interfaces (#21)
Eliminate bqiface and complete test coverage in query package (#22)

Support exporting multiple values in query results

This release includes changes that support exporting multiple result values per query.

Use Standard SQL

This release of bigquery exporter uses BigQuery Standard SQL syntax, removing support for legacy sql.

Initial trial release of the bigquery_exporter v0.1

This release will enable building docker images and continuing to develop k8s configuration that uses that image.