Metricflow

Breaking Changes
- Updated MetricFlow config parameters for BigQuery users. See description on https://github.com/transform-data/metricflow/pull/62 for usage instructions.

Added
- Metric / dimension SQL validations via DW engine (QMalcolm)
- Support for PostgreSQL and setup for local testing (rexledesma)
- Support for DuckDB (plypaul)
- Support for individual user logins to BigQuery (WilliamDee)
- Ability to create the MetricFlow client from a model in a specified directory (WilliamDee)
- Description and owner fields to model objects (WilliamDee)

Updated
- CLI tests without mocks (WilliamDee)
- Package dependencies to address security issues (alliehowe)
- Query cancellation behavior on CLI exit (plypaul)

Added
- Simple Developer API for interacting with MetricFlow engine based on a local config file for Warehouse credentials (williamdee)
- Config validation for Materialization structs (lebca)
- Config templates for useful metrics sourced from Salesforce data, for use by end users of MetricFlow (JStein77)

Added

- Ability to visualize DataFlow Plan from the command line via the `--display-plans` flag (plypaul)

Fixed

- Resolved BigQuery read credential failures on multi-line service account keys (zzsza)
- Resolved ciso8601 installation failures on Ubuntu (plypaul)
- Merge-blocking CI test failures and configuration errors (marcodamore, tlento)
- Typing errors in MeasureReference (lebca)

Removed
- Remove legacy interfaces (andykram)
- Remove legacy time_format parameters from test models (belindabennett)

Updated

- Tutorial updates and extensions (nhandel)
- README improvements (allegraholland, belindabennett, lebca, tlento)
- Contributor guide (tlento)
- CLI versioning (williamdee)
- CLI dependency restructuring in preparation for API extensions (williamdee)

Special thanks

Special thanks to zzsza for the quick fix for our BigQuery token parsing bug!