move to new pycommons and moptipy with generator-based csv api

move to new pycommons and moptipy with generator-based csv api

hopefully some improvements in how instance hardness and errors are weighted

hopefully some improvements in how instance hardness and errors are weighted

using new moptipy version and modified experiment

using new moptipy version and modified experiment

several improvements and dependency version stepping

several improvements and dependency version stepping

move to new moptipy and pycommons version

move to new moptipy and pycommons version

fixed wrong lower bound tour length for cn11, also added optimal tour for this instance

fixed wrong lower bound tour length for cn11, also added optimal tour for this instance

added 11 city chinese TSP

added 11 city chinese TSP

added 2dbpp instance generation code developed with Zhao Rui

added 2dbpp instance generation code developed with Zhao Rui

move to new moptipy and pycommons versions

move to new moptipy and pycommons versions

using new version of pycommons and moptipy

using new version of pycommons and moptipy