feat: strip npsim to the bare minimum of what's required

npsim has long been a piece of code that required periodic updates from the upstream ddsim it originated from. This strips all those pieces out and just uses the upstream DDSim and DDHepSimulation classes that DD4hep installs, and only adds the specific functionality we need.

src/dd4pod/python/npsim/DDSim/Helper/Action.py

-"""Helper object for SD Actions
-"""
-
-from __future__ import absolute_import, unicode_literals
-from DDSim.Helper.ConfigHelper import ConfigHelper
-from ddsix.moves import range
-import ddsix as six
-
-
-class Action(ConfigHelper):
-  """Helper holding sensitive detector actions.
-
-  The default tracker and calorimeter actions can be set with
-
-  >>> SIM = DD4hepSimulation()
-  >>> SIM.action.tracker=('Geant4TrackerWeightedAction', {'HitPositionCombination': 2, 'CollectSingleDeposits': False})
-  >>> SIM.action.calo = "Geant4CalorimeterAction"
-
-  The default sensitive actions for calorimeters and trackers are applied based on the sensitive type.
-  The list of sensitive types can be changed with
-
-  >>> SIM = DD4hepSimulation()
-  >>> SIM.action.trackerSDTypes = ['tracker', 'myTrackerSensType']
-  >>> SIM.calor.calorimeterSDTypes = ['calorimeter', 'myCaloSensType']
-
-  For specific subdetectors specific sensitive detectors can be set based on patterns in the name of the subdetector.
-
-  >>> SIM = DD4hepSimulation()
-  >>> SIM.action.mapActions['tpc'] = "TPCSDAction"
-
-  and additional parameters for the sensitive detectors can be set when the map is given a tuple
-
-  >>> SIM = DD4hepSimulation()
-  >>> SIM.action.mapActions['ecal'] =( "CaloPreShowerSDAction", {"FirstLayerNumber": 1} )
-
-  """
-
-  def __init__(self):
-    super(Action, self).__init__()
-    self._tracker = ('Geant4TrackerWeightedAction', {'HitPositionCombination': 2, 'CollectSingleDeposits': False})
-    self._calo = 'Geant4ScintillatorCalorimeterAction'
-    self._photoncounter = 'PhotoMultiplierSDAction'
-    self._mapActions = dict()
-    self._trackerSDTypes = ['tracker']
-    self._calorimeterSDTypes = ['calorimeter']
-    self._photoncounterSDTypes = ['photoncounter']
-
-  @property
-  def tracker(self):
-    """ set the default tracker action """
-    return self._tracker
-
-  @tracker.setter
-  def tracker(self, val):
-    self._tracker = val
-
-  @property
-  def calo(self):
-    """ set the default calorimeter action """
-    return self._calo
-
-  @calo.setter
-  def calo(self, val):
-    self._calo = val
-
-  @property
-  def photoncounter(self):
-    """ set the default photoncounter action """
-    return self._photoncounter
-
-  @photoncounter.setter
-  def photoncounter(self, val):
-    self._photoncounter = val
-
-  @property
-  def mapActions(self):
-    """Create a map of patterns and actions to be applied to sensitive detectors.
-
-    Example: if the name of the detector matches 'tpc' the TPCSDAction is used.
-
-      SIM.action.mapActions['tpc'] = "TPCSDAction"
-    """
-    return self._mapActions
-
-  @mapActions.setter
-  def mapActions(self, val):
-    """check if the argument is a dict, then we just update mapActions
-    if it is a string or list, we use pairs as patterns --> Action
-    """
-    if isinstance(val, dict):
-      self._mapActions.update(val)
-      return
-
-    if isinstance(val, six.string_types):
-      vals = val.split(" ")
-    elif isinstance(val, list):
-      vals = val
-    if len(vals) % 2 != 0:
-      raise RuntimeError("Not enough parameters for mapActions")
-    for index in range(0, len(vals), 2):
-      self._mapActions[vals[index]] = vals[index + 1]
-
-  def clearMapActions(self):
-    """empty the mapActions dictionary"""
-    self._mapActions = dict()
-
-  @property
-  def trackerSDTypes(self):
-    """List of patterns matching sensitive detectors of type Tracker."""
-    return self._trackerSDTypes
-
-  @trackerSDTypes.setter
-  def trackerSDTypes(self, val):
-    self._trackerSDTypes = ConfigHelper.makeList(val)
-
-  @property
-  def photoncounterSDTypes(self):
-    """List of patterns matching sensitive detectors of type photoncounter."""
-    return self._photoncounterSDTypes
-
-  @photoncounterSDTypes.setter
-  def photoncounterSDTypes(self, val):
-    self._photoncounterSDTypes = ConfigHelper.makeList(val)
-
-  @property
-  def calorimeterSDTypes(self):
-    """List of patterns matching sensitive detectors of type Calorimeter."""
-    return self._calorimeterSDTypes
-
-  @calorimeterSDTypes.setter
-  def calorimeterSDTypes(self, val):
-    self._calorimeterSDTypes = ConfigHelper.makeList(val)