Openexr

* [1727](https://github.com/AcademySoftwareFoundation/openexr/pull/1727)
Fix exact file match
* [1724](https://github.com/AcademySoftwareFoundation/openexr/pull/1724)
Core changes for cpp rewrite
* [1723](https://github.com/AcademySoftwareFoundation/openexr/pull/1723)

* [1722](https://github.com/AcademySoftwareFoundation/openexr/pull/1722)

* [1710](https://github.com/AcademySoftwareFoundation/openexr/pull/1710)

* [1774](https://github.com/AcademySoftwareFoundation/openexr/pull/1774)

* [1734](https://github.com/AcademySoftwareFoundation/openexr/pull/1734)
Silence warning C4201: nonstandard extension used: nameless struct/union.
* [1733](https://github.com/AcademySoftwareFoundation/openexr/pull/1733)

* [1716](https://github.com/AcademySoftwareFoundation/openexr/pull/1716)
Add test for example python code in the pypi README.md
* [1714](https://github.com/AcademySoftwareFoundation/openexr/pull/1714)
fix example
* [1713](https://github.com/AcademySoftwareFoundation/openexr/pull/1713)