NECallMemberChangeInfo 成员列表

成员的完整列表，这些成员属于 NECallMemberChangeInfo,包括所有继承而来的类成员

	callId	NECallMemberChangeInfo
	changedMember	NECallMemberChangeInfo
	changeType	NECallMemberChangeInfo
	channelId	NECallMemberChangeInfo
	members	NECallMemberChangeInfo