Changes to allow install for arm64 darwin.

[kbuma]

Fixes/Addresses:

#1100

Summary/Motivation:

Allows users of MacOs on Apple silicon to install and run FOQUS.

Changes proposed in this PR:

• update to setup.py to exclude PyQt5 install on these machines
• documentation of steps required to install on these machines (once we have the next release out we can remove the need to download source as part of this)

Legal Acknowledgement

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (ceb1e46) 37.23% compared to head (7cb8595) 37.23%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1148   +/-   ##
=======================================
  Coverage   37.23%   37.23%           
=======================================
  Files         160      160           
  Lines       36343    36343           
  Branches     5944     5944           
=======================================
  Hits        13531    13531           
  Misses      21730    21730           
  Partials     1082     1082           

Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)

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[kbuma]

@lbianchi-lbl it looks like the py3.9 tests are no longer passing and that's blocking this from being merged.

I don't think it's due to this change: I ran the tests on my developer machine and I'm getting the same behavior for the 3.17.1 release. I don't know enough about the tests to be able to tell why. Maybe new versions of some dependencies?

[lbianchi-lbl]

@lbianchi-lbl it looks like the py3.9 tests are no longer passing and that's blocking this from being merged.

I don't think it's due to this change: I ran the tests on my developer machine and I'm getting the same behavior for the 3.17.1 release. I don't know enough about the tests to be able to tell why. Maybe new versions of some dependencies?

Yeah, my best guess is NumPy: #1151