leave more space for meta events in events.proto

Author: knopers8

common/protos/events.proto

@@ -141,19 +141,23 @@ message Event {
   int64 timestampNano = 2;
   reserved 3 to 10;
   reserved 17 to 100;
+  reserved 104 to 199;
 
   oneof Payload {
+    // Events produced by AliECS
     Ev_EnvironmentEvent environmentEvent                 = 11;
     Ev_TaskEvent taskEvent                               = 12;
     Ev_RoleEvent roleEvent                               = 13;
     Ev_CallEvent callEvent                               = 14;
     Ev_IntegratedServiceEvent integratedServiceEvent     = 15;
     Ev_RunEvent runEvent                                 = 16;
 
+    // Meta events produced by AliECS or its components
     Ev_MetaEvent_FrameworkEvent frameworkEvent           = 101;
     Ev_MetaEvent_MesosHeartbeat mesosHeartbeatEvent      = 102;
     Ev_MetaEvent_CoreStart coreStartEvent                = 103;
 
-    Ev_BeamModeEvent beamModeEvent                       = 110;
+    // Events produced by other systems, but natively supported and defined by AliECS
+    Ev_BeamModeEvent beamModeEvent                       = 200;
   }
 }