#1355 - Carried out full renaming in node.py, active_node.py, passive_node.py, and service_node.py to make params and variable names explicit.

- Made the same renaming in the yaml laydown config files.
- Added Type hints wherever I've been.
- Added a custom NodeType in custom_typing.py to encompass the Union of ActiveNode, PassiveNode, ServiceNode.

src/primaite/common/custom_typing.py

@@ -0,0 +1,8 @@
+from typing import Type, Union
+
+from primaite.nodes.active_node import ActiveNode
+from primaite.nodes.passive_node import PassiveNode
+from primaite.nodes.service_node import ServiceNode
+
+NodeType: Type = Union[ActiveNode, PassiveNode, ServiceNode]
+"""A Union of ActiveNode, PassiveNode, and ServiceNode."""