Misc fixes, added method for getting min resources, now checks iteration bound

• Did some misc fixes like removed unneccecary check in handle_output...
• Added method for getting min resources.
• Now checks iteration period bound before trying to schedule.
• Added column for memory reads in list scheduler.

Closes: #313 (closed) #301 (closed) #309 (closed)

b_asic/signal_flow_graph.py

@@ -1742,7 +1742,7 @@ class SFG(AbstractOperation):
         """
         ops = self.find_by_type_name(type_name)
         if not ops:
-            raise ValueError(f"No operations of type {type_name} in SFG.")
+            return 0
         if schedule_time <= 0:
             raise ValueError(
                 f"Schedule time must be positive, current schedule time is: {schedule_time}."