BLOCKS API: added an internal option for tweaking the topology change message schedule

modules/juce_blocks_basics/topology/juce_PhysicalTopologySource.cpp

@@ -1198,7 +1198,14 @@ struct PhysicalTopologySource::Internal
         {
             TopologyBroadcastThrottle() = default;
 
-            void scheduleTopologyChangeCallback()   { startTimer (750); }
+            void scheduleTopologyChangeCallback()
+            {
+               #ifdef JUCE_BLOCKS_TOPOLOGY_BROADCAST_THROTTLE_TIME
+                startTimer (JUCE_BLOCKS_TOPOLOGY_BROADCAST_THROTTLE_TIME);
+               #else
+                startTimer (750);
+               #endif
+            }
 
             void timerCallback() override
             {