#2453 - Example Notebooks Require Refactor

- create_simulation_demo and network_simulator_demo notebooks have been updated with correct import paths to reflect refactoring within condebase.
 - Corrected typo within create-simulation_demo: my_swtich -> my_switch
 - updates to ARP implementation. This is now a property in HostNode and NetworkNode, meaning router.arp.show() now works in network_simulator_demo notebook as intended.

src/primaite/simulator/network/hardware/nodes/host/host_node.py

@@ -316,6 +316,10 @@ class HostNode(Node):
         super().__init__(**kwargs)
         self.connect_nic(NIC(ip_address=ip_address, subnet_mask=subnet_mask))
 
+    @property
+    def arp(self) -> Optional[ARP]:
+        return self.software_manager.software.get("ARP")
+
     def _install_system_software(self):
         """
         Installs the system software and network services typically found on an operating system.

src/primaite/simulator/network/hardware/nodes/network/network_node.py

@@ -1,8 +1,9 @@
 from abc import abstractmethod
+from typing import Optional
 
 from primaite.simulator.network.hardware.base import NetworkInterface, Node
 from primaite.simulator.network.transmission.data_link_layer import Frame
-
+from primaite.simulator.system.services.arp.arp import ARP
 
 class NetworkNode(Node):
     """
@@ -28,3 +29,7 @@ class NetworkNode(Node):
         :type from_network_interface: NetworkInterface
         """
         pass
+
+    @property
+    def arp(self) -> Optional[ARP]:
+        return self.software_manager.software.get("ARP")

src/primaite/simulator/network/hardware/nodes/network/router.py

@@ -1215,8 +1215,7 @@ class Router(NetworkNode):
         icmp: RouterICMP = self.software_manager.icmp  # noqa
         icmp.router = self
         self.software_manager.install(RouterARP)
-        arp: RouterARP = self.software_manager.arp  # noqa
-        arp.router = self
+        self.arp.router = self
 
     def _set_default_acl(self):
         """