More typing fixes and less sets

Related to #249

b_asic/architecture.py

@@ -259,8 +259,8 @@ class ProcessingElement(Resource):
             raise ValueError("Cannot map ProcessCollection to single ProcessingElement")
 
     @property
-    def processes(self) -> Set[OperatorProcess]:
-        return {cast(OperatorProcess, p) for p in self._collection}
+    def processes(self) -> List[OperatorProcess]:
+        return [cast(OperatorProcess, p) for p in self._collection]
 
 
 class Memory(Resource):
@@ -363,11 +363,11 @@ of :class:`~b_asic.architecture.ProcessingElement`
     ):
         super().__init__(entity_name)
         self._processing_elements = (
-            set(processing_elements)
+            [processing_elements]
             if isinstance(processing_elements, ProcessingElement)
-            else processing_elements
+            else list(processing_elements)
         )
-        self._memories = [memories] if isinstance(memories, Memory) else memories
+        self._memories = [memories] if isinstance(memories, Memory) else list(memories)
         self._direct_interconnects = direct_interconnects
         self._variable_inport_to_resource: Dict[InputPort, Tuple[Resource, int]] = {}
         self._variable_outport_to_resource: Dict[OutputPort, Tuple[Resource, int]] = {}
@@ -550,11 +550,11 @@ of :class:`~b_asic.architecture.ProcessingElement`
         return dg
 
     @property
-    def memories(self) -> Iterable[Memory]:
+    def memories(self) -> List[Memory]:
         return self._memories
 
     @property
-    def processing_elements(self) -> Iterable[ProcessingElement]:
+    def processing_elements(self) -> List[ProcessingElement]:
         return self._processing_elements
 
     @property