Add new aliases for the "--time" option for the "ls" command

[EpicTux123 via GNU coreutils General Discussion]

When using "ls --time=ARGUMENT" with an invalid argument, it prints the 
following:

-   Valid arguments are:
     - ‘atime’, ‘access’, ‘use’
     - ‘ctime’, ‘status’
     - ‘mtime’, ‘modification’
     - ‘birth’, ‘creation’

I think that new aliases would be cool to add. Specifically:

accesstime, usetime
statustime
modificationtime
birthtime, creationtime

That's all. Thanks!