module for basic method declarations with signatures

 Method::Signatures::Simple is a Perl module that enables developers to make
 basic method declarations, optionally with a signature as well. It provides a
 small amount of syntactic sugar and is intended to be a stepping stone to the
 more feature-complete Method::Signatures (see libmethod-signatures-perl) and
 MooseX::Method::Signatures (see libmoosex-method-signatures-perl) modules.