Config file as a part of the cosypose package

[shaharzuler]

Hi there, thanks a lot for sharing your work.
Installing the config.py file as a part of the entire cosypose package is not so intuitive in my opinion.
Sometimes you want to change the configuration and it feels funny to be required to re-install it every time.
I wanted to suggest the config.py file will be moved out of the cosypose/cosypose directory.