"clear" events on directory & map have ISequencedDocumentMessage payload

[vladsud]

I do not see a point of exposing protocol-level messages in DDS API.
This seems weird. Can we remove it?

export interface ISharedDirectoryEvents extends ISharedObjectEvents {
    (event: "valueChanged", listener: (
        changed: IDirectoryValueChanged,
        local: boolean,
        op: ISequencedDocumentMessage | null,
        target: IEventThisPlaceHolder,
    ) => void);
    (event: "clear", listener: (
        local: boolean,
        op: ISequencedDocumentMessage | null,
        target: IEventThisPlaceHolder,
    ) => void);
}

export interface ISharedMapEvents extends ISharedObjectEvents {
    (event: "valueChanged", listener: (
        changed: IValueChanged,
        local: boolean,
        op: ISequencedDocumentMessage | null,
        target: IEventThisPlaceHolder) => void);
    (event: "clear", listener: (
        local: boolean,
        op: ISequencedDocumentMessage | null,
        target: IEventThisPlaceHolder
    ) => void);
}

[ChumpChief]

Sounds good to me, also the valueChanged events.