update example.
fix.
fix.
fix.
refactor namespace system.
update example.
refactor.
rename scry_obj to obj.
rename scry_localns to localns.
remove unnecessary code.
rename scry_str to scstr.
rename scry_ns to ns.
rename "symbol" to "definition".
refactor.
refactor.
rename.
remove unnecessary code.
update example.
update readme.
implement object, function, and namespace.