native arm64 docker images + wheel builds for linux_aarch64 and macosx_arm64 using Cirrus CI

[ravnoor]

All docker images and wheels are built and test (tests/build_wheels.sh) successfully using Cirrus CI with a few exceptions (summarized in the Table below):

• linux_aarch64: no py36 and py311 wheels . py36 fails while building scikit-image since no py36 wheels exists on PyPI, and py311 errors out while building antspyx possibly due to pybind11
• macosx_arm64: cibuildwheel on Apple Silicon only supports py37+. py311 fails to build with the error similar to the one described above. The default deployment target is macosx_11 or higher
• docker: both arm64 and x86_64 images are built and then unified into a single docker image

	Linux aarch64	macOS Apple Silicon	Docker
CPython 3.6	❌	N/A	N/A
CPython 3.7	✅	N/A	N/A
CPython 3.8	✅	✅	N/A
CPython 3.9	✅	✅	N/A
CPython 3.10	✅	✅	✅
CPython 3.11	✅	✅	N/A

GitHub Actions can successfully build cp36 on linux_x86_64, so possibly something to do with arm64, but I haven't investigated these failures further yet.

Build artifacts and detailed logs can be found here: https://cirrus-ci.com/build/5986395915812864

UPDATE: fixed py311 support for arm64 and x86_64

[ravnoor]

@cookpa @stnava

• I'm done incorporating most of the functionalities as discussed. Most of it (the CI conditionals) can't be tested until after the merge since the .cirrus.yml isn't in the primary repo yet
• Secrets placeholders need to be replaced with actual tokens as well for GitHub releases and PyPI to be tested
• I've fixed Python 3.11 support as well (COMP: Add support for python 3.11, remove 3.6 from CI build wheels #426)

Let me know if there's anything you'd like me revert or update.

[stnava]

wonderful contribution ... I am merging so we can move this along ( sorry for delay - just been super busy recently - will settle down after next week ).