GitLab

 - auto download of pybind11 (needed on ubuntu bionic)
 - cameo-api-python embedding the c++ api in the .so
 - debian package created by cpack
 - Virtual deb package cameo-server now provided by cameo-server-jzmq package
 - Other packages now requiring cameo-server as dependency
 - README documentation about how to compile and install

Added necessary functions with call_guard policy py::gil_scoped_release to avoid blocking python threads

Added minimum functions with call_guard policy py::gil_scoped_release to avoid blocking python threads

 - README with list of dependencies
 - Compilation using CMake
 - cameo c++ API downloaded from source if not installed on the machine
 - doxygen for documentation
 - python binding with pybind11
 ** Installation of the python binding not yet fixed **