A number of changes to try to get to the point where I could use Wokwi for some basic testing of animations

include/StreamEvent.h

@@ -10,6 +10,7 @@ class StreamEvent
       handled = false;
 
       code = _readFrom->read();
+      subCode = _readFrom->read();
       flags = _readFrom->read();
 
       if (flags & 0x01 == 1) {
@@ -32,6 +33,8 @@ class StreamEvent
 
     uint8_t getCode() { return code; }
 
+    uint8_t getSubCode() { return subCode; }
+
     uint16_t getPayloadSize() { return payloadSize; }
   
     byte* getPayload() { return payload; }
@@ -40,7 +43,7 @@ class StreamEvent
     bool isResponse() { return flags & 0x02 == 2; }
     bool isDescribeRequest() { return flags & 0x04 == 4; }
 
-  virtual ~StreamEvent() { delete[] payload; }
+  ~StreamEvent() { delete[] payload; }
 
   private:
     byte*
@@ -49,6 +52,7 @@ class StreamEvent
       payloadSize;
     uint8_t
       code,
+      subCode,
       flags;
     bool
       handled;