www.phy.bnl.gov's SSL certificate breaks the "test data repo" feature

[brettviren]

We should be able to do:

./wcb --test

and it will download some test data and populate the "test data repo". However it chokes on www.phy.bnl.gov's SSL certificate (the provider of the data).

ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1006)

This is likely a known problem where the certificate does not include the full signing chain in a format that is expected, though it is legit in format and content.