Roman-datamodels

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- Add support for the cal_logs array, which will be used to store calibration
log messages. [53]

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- Modified DNode and LNode classes to provide asdf info method introspection
into the contents of the class. [61]

- Modified open function to handle accepting model instances that are checked
against a target datamodel class, whether supplied directly as a model instance,
or obtained by the referenced ASDF file. [52]

- Created maker utility and tests for ramp_fit_output files. [50]

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- Reverted Exposure time types from string back to astropy Time. [49]

- Added ability to add attributes to datamodels [33]

- Added support for Saturation reference files. [37]

- Updated Ramp Pedestal Array to 2D. Fixed reference model casting in test_models. [38]

- Implemented support and tests for linearity reference model. Corrected dimension order in factories. Added primary array definition to MaskRefModel. [39]

- Updated tests and makers for exposure and optical_element requirements in reference files. [42]

- Changed exposure ``start_time``, ``mid_time``, and ``end_time`` to string to match RAD update. [40]

- Implemented support, tests, and maker utility for Super Bias reference files. [45]

- Created maker utility and tests for wfi photom reference files. [43]

- Added support, tests, and maker utility for Pixel Area reference files. [44]

- Added check to ensure opening a Roman file with datamodel class
that doesn't match the class implied by the tag raises an exception. [35]

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- Updated ENGINEERING value to F213 in optical_element. [29]

- Workaround for setuptools_scm issues with recent versions of pip. [31]

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- Added tests for mask maker utility. [25]

- Added Dark Current model maker and tests. [26]

- Added Readnoise maker utility and tests. [23]

- Added Gain maker utility and tests. [24]

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