please give back pyside.

[peter green <plugwash@p10link.net>]

please give back pyside, it failed to build due to a missing file,

CMake Error at /usr/lib/x86_64-linux-gnu/cmake/Shiboken-1.2.2/ShibokenConfig.cmake:5 (include):
  include could not find load file:

    /usr/lib/x86_64-linux-gnu/cmake/Shiboken-1.2.2/ShibokenConfig.cpython-37m-x86_64-linux-gnu.cmake
Call Stack (most recent call first):
  CMakeLists.txt:8 (find_package)

The build attempt was against an older version of libshiboken-dev which as far as I can tell was not built against python 3.7, the shiboken 1.2.2-5.1 seems to have been built against python3.7 and hence has the file in question.