### Is your feature request related to a problem? Livestreaming in more modern implementations of DirectLine, such as the Agents SDKs give streaming information through the `entities` field rather than the `channelData` field. This feature would allow botframework-webchat to be up to date with current Microsoft products ### Describe the suggestion or request in detail the `getActivityLiveStreamingMetadata` in botframework-webchat-core must also check `entities` for streaming information ### Describe alternatives you have considered None - Entities is becoming the standard way to handle streaming data