Create a new Suture

[searls]

Be able to do this:

Suture.new(
  :old => MyThing.new,
  :args => [1,2,3]
)

Where old can be any call-able, this should work too:

Suture.new(
  :old => ->{|a,b,c|  MyThing.new.call(a, b, c)  },
  :args => [1,2,3]
)