Simplify CMake building scripts for Python modules

[rafa-be]

We have a lot of duplicate code for building Python modules for the OSS, YMQ and containers.

These account for a lot of the boilerplate code our CMakeLists.txt have, and could be simplified with a custom CMake function, e.g.:

add_python_module(
    NAME <Python Module Name>
    TARGET <C++ object/library name>
    SOURCES <Source files>
    INSTALL_DESTINATION src/scaler/<directory>
)

[sharpener6]

yes, those should be refactored, otherwise why we are using CMake, we can just use Makefile