graphics/openexr-website-docs: unbreak and update to 3.3.2

And while here, decouple our PORTVERSION from the openexr version so we
don't break builds.

v3.3.2 seems to have a regression and causes a warning around Latest
News inserts on one site, so add -DSPHINX_OPTS= to override the default
of -W which means "treat warnings as errors", as of 3.3.2, I see one
warning.

graphics/openexr*: upgrade to 3.3.1

ChangeLog:	https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.1

Also add a local docs/CMakeLists.txt patch to add an exrmetrics man
page, omission reported upstream to
https://github.com/AcademySoftwareFoundation/openexr/issues/1881

graphics/openexr*: upgrade to 3.3.0

This changes the ABI (but not the API) and .so file name,
so we will need to bump all PORTREVISIONs of users, and we'll also fix
graphics/ctl and multimedia/olive.

This is not going to be MFHd to 2024Q4 due to API change, and therefore
has also waited for 2024Q4 to branch before we committed this to main,
so as to avoid 2024Q4 breakage.

ChangeLog:	https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.0
PR:		281859

graphics/openexr-website-docs: fix build with v3.2.4 changes

- share the distfiles directory and the NO_WRKSUBDIR
- update patch for updated upstream CMakeLists.txt infrastructure

graphics/openexr-website-docs: update for v3.2.2

MFH:		2024Q1

graphics/openexr-website-docs: push distinfo update

...forgotten when pushing graphics/openexr 3.2.1 update 9a529daeee.

Reported by:	pkg-fallout@

graphics/openexr: update to 3.2.0

- Also install manual pages (generated through help2man)
- The website (formerly known "DOCS" build) requires the "convert(1)"
  tool, which is part of ImageMagick, which itself depends on OpenEXR.
  To break the loop, split out the offline website build to a new
  package, graphics/openexr-website-docs