math/manifold3.5.4

math/manifold: update to v3.5.4

Do not foister -std=c++17 upon pkgconfig consumers to fix the build
in the upcoming math/burr-tools update.

Changelog: https://github.com/elalish/manifold/releases

PR:		299260
Reported by:	fuz

math/manifold: Improve port

* Use upstream release archive
* Define LICENSE_FILE
* Clean up "make test" related parts
* Only extract samples dir on request (reduces I/O)
* Respect C/CXX flags set by framework
* Adjust Makefile layout to follow Porters Handbook more closely
  and the tree overall

PR:		292089
Approved by:	blanket (just fix it)

math/manifold: resurrect and update to 3.3.2

PR:	291258

math/manifold: remove

I have a WIP to upgrade BRL-CAD, and manifold is intended to be one of
its dependencies, but I’m currently blocked, and it is not yet ready.

See https://github.com/BRL-CAD/bext/issues/3
and https://github.com/BRL-CAD/brlcad/issues/188

multimedia/assimp: update 6.0.1 → 6.0.2

Reported by:	portscout

multimedia/assimp: update 5.4.3 → 6.0.1

math/manifold: fix on i386

Remove -Werror on 32 bits archs: compilation failed in stl_test.cpp, caused
by a format mismatch in printf.

math/manifold: new port, Geometry library for topological robustness