It is Herwin's resend fix. Test sources are present but not
enabled during library build (will have to implement test build asap).

fixed overlapping InputBuffer constructors and added BufferConfiguration and BufferConfigurationBuilder

Added BufferConfigurationBuilder to Cpp implementation. Added Channel getter to IUInterface in Cpp implementation. Old constructor interfaces are unchanged to pre-channel versions in Cpp implementation. Added new constructor with BufferConfiguration-parameter for channel usage.

Added ipaaca channel possibilities based on rsb scope. Also, deprecated incompatible InputBuffer constrcutors for non-container parameters for multiple categories, from cpp version

State: "experimental - work required".

Special build file conditions and conditionally compiled
source code sections were implemented to make ipaaca compile
under Windows. For now, the required libraries from the
prepackaged "rsx" ZIP provided by CoRLab have been hard-coded
in the Windows resolution / linking sections. The unpacked
archive is expected to reside in the common repo dir as "rsx".

Tested on Mac and Linux. Please report any issues.
Please update the rsb project first.
Also, please update the soa script and run "soa fix".

Make sure to update rsb simultaneously.

also reduced verbosity for python and fixed the c++ test build settings

A new dedicated MessageConverter was added at the same time.

Important: Java version does not yet contain
  Messages (or Retraction, for that matter)
Note: Messages are received and routed to the
  handlers with the special new MESSAGE event
  type, as opposed to ADDED. This decision is
  of course open for discussion.
Additional bugfix: Typecasting conflict in C++
  payloads fixed. Reverted to cstdlib casts
  to avoid bulky exceptions being thrown.

Important: Java version does not yet contain
  Messages (or Retraction, for that matter)
Note: Messages are received and routed to the
  handlers with the special new MESSAGE event
  type, as opposed to ADDED. This decision is
  of course open for discussion.

Implemented retraction handler. Replaced deprecated converter repository call.