Regroup all require calls in lib source files

lib/producer/core.rb

@@ -1,5 +1,10 @@
 require 'forwardable'
 
+require 'etc'
+require 'net/ssh'
+require 'net/sftp'
+
+
 # task actions
 require 'producer/core/action'
 require 'producer/core/actions/echo'

lib/producer/core/remote.rb

@@ -1,9 +1,6 @@
 module Producer
   module Core
     class Remote
-      require 'etc'
-      require 'net/ssh'
-
       attr_reader :hostname
 
       def initialize(hostname)

lib/producer/core/remote/fs.rb

@@ -2,8 +2,6 @@ module Producer
   module Core
     class Remote
       class FS
-        require 'net/sftp'
-
         attr_reader :remote
 
         def initialize(remote)