[Build System] Added licence and version inside the cmake file.
[Build system][ref #85] Renamed EXPORT_FILEOBJPLUGIN into EXPORT_PLUGIN_FILEFORMATCOLLADA defines.
[Build System][ref #86] Renamed EXPORT_* defines into NC_EXPORT_*
[Nc-Core][ref #86] Renamed LCORE define into LIB_NC_CORE.
[Nc-Graphics][ref #86] Renamed LGRAPHICS define into LIB_NC_GRAPHICS.
[Nc-GUI][ref #86] Renamed LGUI define into LIB_NC_GUI.
[Nc-Contrib][ref #86] Renamed LCONTRIB define into LIB_NC_CONTRIB.
[Plugin][ref #86] Renamed LFILEOBJPLUGIN define into LIB_NC_PLUGIN_FILEFORMATCOLLADA.