feat (external_api) add command for kick participant

modules/API/API.js

 } from '../../react/features/base/conference';
 import { parseJWTFromURLParams } from '../../react/features/base/jwt';
 import JitsiMeetJS, { JitsiRecordingConstants } from '../../react/features/base/lib-jitsi-meet';
-import { pinParticipant, getParticipantById } from '../../react/features/base/participants';
+import { pinParticipant, getParticipantById, kickParticipant } from '../../react/features/base/participants';
 import { setPrivateMessageRecipient } from '../../react/features/chat/actions';
 import {
     processExternalDeviceRequest
         },
         'cancel-private-chat': () => {
             APP.store.dispatch(setPrivateMessageRecipient());
+        },
+        'kick-participant': participantId => {
+            APP.store.dispatch(kickParticipant(participantId));
         }
     };
     transport.on('event', ({ data, name }) => {

modules/API/external/external_api.js

     toggleLobby: 'toggle-lobby',
     hangup: 'video-hangup',
     intiatePrivateChat: 'initiate-private-chat',
+    kickParticipant: 'kick-participant',
     muteEveryone: 'mute-everyone',
     password: 'password',
     pinParticipant: 'pin-participant',