[MacPorts] #56138: py-pdfrw: Update to 0.4, switch to Github, new maintainer

[MacPorts]

#56138: py-pdfrw: Update to 0.4, switch to Github, new maintainer
----------------------------------+----------------------
 Reporter:  numeratus             |      Owner:
     Type:  update                |     Status:  new
 Priority:  Normal                |  Milestone:
Component:  ports                 |    Version:
 Keywords:  haspatch, maintainer  |       Port:  py-pdfrw
----------------------------------+----------------------
 Submitting portfile for py-pdfrw that has moved from Google code to
 Github.

 I tested the livecheck as well.

 I tested on py27 and py36. Author claims "Version 0.4 is tested and works
 on Python 2.6, 2.7, 3.3, 3.4, 3.5, and 3.6"

 Addresses issue highlighted in https://trac.macports.org/ticket/53467

--
Ticket URL: <https://trac.macports.org/ticket/56138>
MacPorts <https://www.macports.org/>
Ports system for macOS