Add pbcopy to pry

.pryrc

# Copy and paste sourced from: https://coderwall.com/p/qp2aha/ruby-pbcopy-and-pbpaste

def pbcopy(input)
  str = input.to_s
  IO.popen('pbcopy', 'w') { |f| f << str }
  puts "copied to clipboard"
  true
rescue
  puts $!
end

def pbpaste
  `pbpaste`
end

Pry::Commands.block_command 'paste_eval', "Pastes from the clipboard then evals it in the context of Pry" do
  _pry_.input = StringIO.new(pbpaste)
end