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

@@ -1739,9 +1739,6 @@ class SFG(AbstractOperation):
             Type name of the given resource.
         schedule_time : int
             Scheduling time to evaluate for.
-        Returns
-        -------
-        The lower bound for the given resource.
         """
         ops = self.find_by_type_name(type_name)
         if not ops: