saspy 4.3.1 on Python PyPI

[4.3.1] - 2022-07-06

Tweak Thanks to our graphics design dept for creating a cool logo for SASPy! I added the graphic to the main repo
page (in the readme), and to the saspy-examples repo and to the documentation page. This has nothing to do with the code
or functionality; just a cool logo for SASPy!

Tweak Changed the prompt in the IOM access method which asks for userid/pw to use 'OMR' instead of 'IOM' since the
configuration keys for user/pw are omruser/omrpw not iomuser/iompw. This has no effect on the code or processing, just
changing the text of the message to better correlate with the right acronym.
Tweak Made a change in the java IOM client code for upload/download to propagate and return the error if there was
a failure during the data transfer phase. Never seen this case happen before, but if it does it should be more clear.

Fix Added a check in the HTTP access method in upload and download to see if the status for the HTTP call was an error
and return the failure. Previously it didn't check and just returned success.
Fix Made a change in the HTTP access method's download method to read/write chunks of the data instead of the whole
file to keep from running out of, or using excess, memory in the Python process.