tool: add READY_TO_ENGAGE into rtk player.
tool: add READY_TO_ENGAGE into rtk player.

jinghaomiao/apollo,wanglei828/apollo,ApolloAuto/apollo,wanglei828/apollo,xiaoxq/apollo,jinghaomiao/apollo,jinghaomiao/apollo,ycool/apollo,jinghaomiao/apollo,xiaoxq/apollo,ycool/apollo,wanglei828/apollo,ApolloAuto/apollo,wanglei828/apollo,ycool/apollo,xiaoxq/apollo,xiaoxq/apollo,ApolloAuto/apollo,wanglei828/apollo,xiaoxq/apollo,ApolloAuto/apollo,jinghaomiao/apollo,ycool/apollo,jinghaomiao/apollo,xiaoxq/apollo,wanglei828/apollo,ycool/apollo,ApolloAuto/apollo,ApolloAuto/apollo,ycool/apollo