[wpilib] Include sendable type information in topic metadata (#6741)

wpilibj/src/main/java/edu/wpi/first/wpilibj/smartdashboard/SendableBuilderImpl.java

@@ -251,7 +251,10 @@ public class SendableBuilderImpl implements NTSendableBuilder {
   @Override
   public void setSmartDashboardType(String type) {
     if (m_typePub == null) {
-      m_typePub = m_table.getStringTopic(".type").publish();
+      m_typePub =
+          m_table
+              .getStringTopic(".type")
+              .publishEx(StringTopic.kTypeString, "{\"SmartDashboard\":\"" + type + "\"}");
     }
     m_typePub.set(type);
   }