Add pyvips-binary package

[kleisauke]

Binary wheels are build using cibuildwheel for use on the most common platforms:

• macOS x64 (>= 10.13)
• macOS ARM64
• Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)
• Linux ARM64 (glibc >= 2.26, musl >= 1.2.2)
• Windows x64
• Windows x86

This leverages the pre-built binaries from the https://github.com/kleisauke/libvips-packaging repo, the same binaries are used by NetVips.

Marked as draft due to this notes:

• Perhaps this should be in a separate repository?
• Windows binaries are currently using the -static-ffi variant. The plan is to distribute the -static variant when libvips 8.16 is released.
  

  pyvips/pyvips-binary/scripts/cibw_before_build.sh

  Lines 14 to 16 in ea769b2

  	# GLib is compiled as a shared library in the "-static-ffi" variant
  	# TODO: Remove after we distribute the "-static" variant in the libvips-packaging repo
  	linkname+=" -llibglib-2.0 -llibgobject-2.0"

  
  (this will also require a major bump in NetVips, see e.g. commit kleisauke/net-vips@8856756)

[jcupitt]

Nice!

Yes, maybe a separate repo is better.