add team stash getter

config.yaml

     state_dumper: "opencombat.state.StateDumper"
     state_schema: "opencombat/state.xsd"
     state_template: "opencombat/state_template.xml"
+    unit_stash: "opencombat.strategy.unit.stash.UnitStash"
+    team_stash: "opencombat.strategy.team.stash.TeamStash"
     cache_dir_path: 'cache'
     include_path:
       maps:

opencombat/strategy/selection/troops.py

             self._config,
             units_file_path,
         )
+
+    def get_team_stash(
+        self,
+        teams_file_path: str,
+    ) -> UnitStash:
+        class_address = self._config.resolve(
+            'global.team_stash',
+            'opencombat.strategy.team.stash.TeamStash',
+        )
+        class_ = get_class_from_string_path(
+            self._config,
+            class_address,
+        )
+        return class_(
+            self._config,
+            teams_file_path,
+        )

opencombat/strategy/team/stash.py

 # coding: utf-8
 import typing
 
+from synergine2.config import Config
+
 from opencombat.strategy.unit.model import TeamModel
 
 
 class TeamStash(object):
     def __init__(
         self,
+        config: Config,
         teams_file_path: str,
     ) -> None:
+        self._confg = config
         # TODO Load xml, validate
         self._teams = None  # typing.List[TeamModel]
 

opencombat/strategy/unit/stash.py

 # coding: utf-8
 import typing
 
+from synergine2.config import Config
+
 from opencombat.strategy.team.model import UnitModel
 
 
 class UnitStash(object):
     def __init__(
         self,
+        config: Config,
         units_file_path: str,
     ) -> None:
+        self._confg = config
         # TODO Load xml, validate
         self._units = None  # typing.List[UnitModel]