quick argument parsing

A simple concise way of defining arguments for an argparse.ArgumentParser

-- Syntax --

comma separated argument definitions in the form of...

    <short name>(<long name>)[<type>]=<default>

all but short name is optional
if long name is undefined, long name will equal short name
if short name is more than 1 character and long name is undefined than
short name will be the first character of short name and long name will be
short name (i.e. if 'foo' is provided, short name == 'f', long name == 'foo')

-- Example --

import qarg
ns = qarg.get('f(foo)[int]=1,r(bar),baz[str]')

