- Add initial support for pocolibs posters

Fix DEPEND_DIR.py-poco, causing errors in show-depends of wip/hri-simulation,
and fix a typo in the pkgname (s/pypoco/py-poco/).

While here, generate headings, disable configure step, and print-PLIST.

I'd suggest that the package is renamed to py-tclserv, as this is what it
really does (at least it does not do any pocolibs wrapping as the name
suggests). And this would be consistent with COMMENT.

Changes since pypoco-1.3:
- fixed a bad issue when using 2 instances of pypoco in the same application.
  Because of global variables, sockets would be reused, which is not the
  expected behaviour in general.
- fixed a bug when force closing sockets

Changes since pypoco-1.2:
- Fixed a bad deadlock when sending asynchronous requests. Done by
  rewriting the network code to use two sockets, one for control, one
  for asynchronous answers.
- Fixed the ABORT logic. Request can now be correctly aborted
- Changed the behaviour of PocoProxy.request() to return a PocoRequest
  object that allows easy abortion of asynchronous requests.
- Added a global pypoco.close() method that closes all open connections
- Added a pypoco specific logger (called 'pypoco')
- Replaced tabs indentation by spaces

PLIST not done. Too long.