Installation hangs due to broken resizer download

[nocnokneo]

Pip installation hangs:

python3 -m pip install pynqmetadata 

Due to something that changed with the download of https://www.xilinx.com/bin/public/openDownload?filename=pynqhelloworld.resizer.pynqz2.hwh

My quick workaround is nocnokneo@e8e5466

Which works:

python3 -m pip install git+https://github.com/nocnokneo/PYNQ-Metadata.git

But two improvements should really be done here:

• Don't download packages as part of setup.py. This is very fragile and a recipe for sudden build failures like this for users of the package
• Consider making all these test-only files part of a dev-only dependency

[mdarnold1]

Noting that this affects multiple projects that depend on it, including Pynq, Alveo-PYNQ, and https://pypi.org/project/pynq-compute-labs/.

Adding to workaround above (thanks!), some dependent pip installs (e.g. pynq-alveo-examples) then require --no-build-isolation, since it seems to ignore --no-deps.

[mdarnold1]

Problem occurs back to v0.1.3, v0.1.2 installs ok and satisfies requirements of depending packages, but lacks some important bug fixes.