Tidy dependencies and add --with authortests build option
    
    - BR/R: optional modules perl(Readonly::XS), perl(Term::ANSIColor) >= 2.02
    - BR: perl(Pod::Spell) >= 1
    - BR: perl(Text::ParseWords) >= 3
    - Add runtime deps for optional modules perl(File::HomeDir), perl(File::Which)
    - Add dependency on aspell for Perl::Critic::Policy::Documentation::PodSpelling
    - Add version 1.889 requirement for perl(Email::Address)
    - Add version 0.19 requirement for perl(List::MoreUtils)
    - Add version 0.010 requirement for perl(PPIx::Regexp)
    - Add version 1.001 requirement for perl(PPIx::Utilities::Statement)
    - Add version 0.77 requirement for perl(version)
    - Drop unused buildreq perl(Test::Spelling)
    - Drop bogus buildreqs perl(lib) and perl(base)
    - Add option for building with author tests enabled (--with authortests)
    - Add patch with words not in Fedora dictionaries for spell check tests
    - Split buildreqs into separate sections for build process, the module, the
      main test suite and the author tests