gladys-0.2.8

Changes since v0.2.7:

Pierrick Koch (9):
      [region] add region from rgba
      [weight_map] add costmap inherit weight_map
      [python] add gladys.costmap boost::python bindding
      [readme] update zenodo link
      [ci] test gitlab-ci
      [python] add missing utm-custom convert
      [python] add Gladys class from Atlaas
      [costmap] fix bug w<=0 -> obstacle (100) in graph
      [python] update Gladys class from Atlaas