ecxx: Adding ECXX_USE_EO1 flag to compilation.
ecxx: Added module eo_version_generator.
ecxx-examples: Added eolian example.
ecxx-examples: Renamed examples.
ecxx-examples: Added manually edited Eolian generated files.

Unfortunately Eolian is not generating proper code yet so I had to
edit the generated files manually to be able to forge examples of
Ecxx.
ecxx-headers: Added partial support to Eo-1.

include/ecxx/inherit.hh is not implemented yet.
ecxx-examples: Added debug messages to the example.
ecxx-headers: Moved common eo_ops to detail/impl.
Merging from master.
ecxx-bin: Removed bad include.
ecxx-examples: Fixed typo.
ecxx-examples: Fixed wrong classname.
ecxx-example: Added pretty messages to CMakeLists.txt.
ecxx-lib: Fixed generation of the default constructor.
ecxx-tests: Appended _CLASS to class names.