Fix Pyro work with SSL wrapper (sslpsk)

Following error was shown in Beremiz console:
PYRO connecting to URI : PYROS://127.0.0.1:3001#beremiz
Exception while connecting to 'PYROS://127.0.0.1:3001#beremiz': non-zero flags not allowed in calls to recv() on <class 'ssl.SSLSocket'>
Connection failed to PYROS://127.0.0.1:3001#beremiz!

Reason is that Pyro calls socket recv() with MSGWAITALL flag, that causes ValueError exception.

https://docs.python.org/2/library/ssl.html
recv(), recv_into() (but passing a non-zero flags argument is not allowed)

     1

<?xml version='1.0' encoding='utf-8'?>

     2

<BeremizRoot URI_location="LOCAL://">

     3

  <TargetType/>

     4

  <Libraries Enable_SVGUI_Library="true" Enable_Python_Library="true"/>

     5

</BeremizRoot>