Fmu-dataio

What's Changed
* Clean-up related to restart_from by alifbe in https://github.com/equinor/fmu-dataio/pull/325
* map classification from ssdl.access_level by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/324


**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.6.0...1.6.1

What's Changed
* data.size and data.columns in schema by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/321
* Brush-up the README by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/323
* Add fmu_restart metadata on iteration level by alifbe in https://github.com/equinor/fmu-dataio/pull/314
* test py37, 38, 39, 310 and 311 by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/322
* Allow no iteration.id and put logic on iteration.name by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/306


**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.5.3...1.6.0

What's Changed
* move restart_from to fmu.iteration by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/308
* allow field_region as content by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/310
* make -1 and 1 valid values for data.spec.yflip by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/312
* Table index updated by daniel-sol in https://github.com/equinor/fmu-dataio/pull/313

New Contributors
* daniel-sol made their first contribution in https://github.com/equinor/fmu-dataio/pull/313

**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.5.2...1.5.3

What's Changed
* Move conftest.py and use fixtures for schema tests by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/300
* lock data.time to a dictionary with t0 and t1 by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/301
* Make data.time contractual by adnejacobsen in https://github.com/equinor/fmu-dataio/pull/303

New Contributors
* adnejacobsen made their first contribution in https://github.com/equinor/fmu-dataio/pull/303

**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.5.1...1.5.2

What's Changed
* add fmu.context.stage to schema and examples by perolavsvendsen in https://github.com/equinor/fmu-dataio/pull/294
* Adjust behaviour when invalid metadata by jcrivenaes in https://github.com/equinor/fmu-dataio/pull/297


**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.5.0...1.5.1

What's Changed
* Add 'calculation' as field for content 'seismic', https://github.com/equinor/fmu-dataio/pull/290


**Full Changelog**: https://github.com/equinor/fmu-dataio/compare/1.4.3...1.5.0