pycopy-atexit 0.0.0

This is a dummy implementation of a module for the standard library of Pycopy project (https://github.com/pfalcon/pycopy). It contains zero or very little functionality, and primarily intended to avoid import errors (using idea that even if an application imports a module, it may be not using it onevery code path, so may work at least partially). It is expected that more complete implementation of the module will be provided later. Please help with the development if you are interested in this module.