Factor out common metadata to importable file.
dbm: Add dummy module.
fnmatch: Add dummy module.
glob: Add dummy module.
stat: Add dummy module.
collections: Add setup metadata.
subprocess: Add dummy module.
binhex: Add dummy module.
shutil: Add dummy module.
queue: Add dummy module.
urllib: Add dummy module.
base64: Add dummy module.
pprint: Add dummy module.
functools: Add dummy module.
binascii: Add dummy module.
datetime: Add dummy module.
shlex: Add dummy module.
asyncio: Initial prototype implementation.
asyncio: Implement subclass implementing filedes watching interface.
asyncio: Recover eventloop's ability to work with callbacks.

Actually, coroutine support for call_soon() is a hack, in big asyncio coroutine
should be wrapped in Task object.