Add definition for Ruby 2.4.1

Refer: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/80279

share/ruby-build/2.4.1

+install_package "openssl-1.1.0e" "https://www.openssl.org/source/openssl-1.1.0e.tar.gz#57be8618979d80c910728cfc99369bf97b2a1abd8f366ab6ebdee8975ad3874c" mac_openssl --if has_broken_mac_openssl
+install_package "ruby-2.4.1" "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.1.tar.bz2#ccfb2d0a61e2a9c374d51e099b0d833b09241ee78fc17e1fe38e3b282160237c" ldflags_dirs standard verify_openssl