* [Setup] basic updates to setup.cfg

* [Setup] pip install finn in entrypoint script

also clean up Dockerfile a bit, remove EXPOSE cmds from Dockerfile.finn_dev
-- these don't really have a function

* [Setup] add cleanup prior to pip install to remove cruft

can otherwise break finn during FINN->finn transition in setup.cfg

* [Deps] add pip install for pyverilator

onnx==1.5.0 breaks the TopK op in dev