Remove BoundDestination Object

New Variable 'var_can_be_bound'
Observations adjusted accordingly

marl_factory_grid/environment/groups/agents.py

@@ -11,10 +11,6 @@ class Agents(PositionMixin, EnvObjects):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
-    @property
-    def obs_pairs(self):
-        return [(a.name, a) for a in self]
-
     @property
     def action_space(self):
         from gymnasium import spaces