Recipe

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* Breaking chagne: removed support for v1 ingredient configuration.
* Refactor tests to use unittests
* Add type annotations
* Add substr function

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* Add support for like and ilike in parsed expressions

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* Fix automatic filters when dimension ids contain double underscores

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* Improve mssql support

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* Fix for splitting operators in automatic filters

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* Add directives that will convert dates and datetimes to the nearest year/month/day