setting the prefix path to /usr/ to make sure that when creating debian packages the library path contain the architecture subdir

ldconfig not able to find the library without this path change. The .so now in the lib/ directory without subdir

fixing cameopy name and location to debian defaults

See merge request !7

Defined static functions in pybind11 and added arguments names and default values in the functions that have some

Debian packages for cameo and APIs

See merge request !6

Fixed propagation of transitive properties from object to shared and static libraries (link dependencies, include directories, compile features)

 - FindZeroMQ now shipped in the installation path of the cmake config
 - fixed library name in the exported cameo-api-cpp-config.cmake
 - set shared library as default when building and installing