Added .crossing support to axes.

Author: hcpchris

highcharts_gantt/options/axes/x_axis.py

@@ -82,6 +82,7 @@ def _get_kwargs_from_dict(cls, as_dict):
             'categories': as_dict.get('categories', None),
             'ceiling': as_dict.get('ceiling', None),
             'class_name': as_dict.get('className', None),
+            'crossing': as_dict.get('crossing', None),
             'date_time_label_formats': as_dict.get('dateTimeLabelFormats', None),
             'end_on_tick': as_dict.get('endOnTick', None),
             'events': as_dict.get('events', None),

highcharts_gantt/options/axes/y_axis.py

@@ -84,6 +84,7 @@ def _get_kwargs_from_dict(cls, as_dict):
             'categories': as_dict.get('categories', None),
             'ceiling': as_dict.get('ceiling', None),
             'class_name': as_dict.get('className', None),
+            'crossing': as_dict.get('crossing', None),
             'date_time_label_formats': as_dict.get('dateTimeLabelFormats', None),
             'end_on_tick': as_dict.get('endOnTick', None),
             'events': as_dict.get('events', None),