Fix #1524 and #1525.

`topicAliasMaximum` for receiving is designed as setting by MqttClient
option, not setting by CONNECT property.
And it is automatically used as CONNECT property.

However, the document said `topicAliasMaximum` is set by CONNECT
property.
It is bad so I fixed it.

In addition, corresponding typescript definitions are fixed.

README.md

@@ -354,14 +354,14 @@ the `connect` event. Typically a `net.Socket`.
       ```js
         customHandleAcks: function(topic, message, packet, done) {/*some logic wit colling done(error, reasonCode)*/}
       ```
+  * `topicAliasMaximum`: representing the Topic Alias Maximum value indicates the highest value that the Client will accept as a Topic Alias sent by the Server `number`. It is automatically set to CONNECT property.
   * `autoUseTopicAlias`: enabling automatic Topic Alias using functionality
   * `autoAssignTopicAlias`: enabling automatic Topic Alias assign functionality
   * `properties`: properties MQTT 5.0.
   `object` that supports the following properties:
     * `sessionExpiryInterval`: representing the Session Expiry Interval in seconds `number`,
     * `receiveMaximum`: representing the Receive Maximum value `number`,
     * `maximumPacketSize`: representing the Maximum Packet Size the Client is willing to accept `number`,
-    * `topicAliasMaximum`: representing the Topic Alias Maximum value indicates the highest value that the Client will accept as a Topic Alias sent by the Server `number`,
     * `requestResponseInformation`: The Client uses this value to request the Server to return Response Information in the CONNACK `boolean`,
     * `requestProblemInformation`: The Client uses this value to indicate whether the Reason String or User Properties are sent in the case of failures `boolean`,
     * `userProperties`: The User Property is allowed to appear multiple times to represent multiple name, value pairs `object`,

types/lib/client-options.d.ts

@@ -104,11 +104,13 @@ export interface IClientOptions extends ISecureClientOptions {
     }
   }
   transformWsUrl?: (url: string, options: IClientOptions, client: MqttClient) => string,
+  topicAliasMaximum?: number,
+  autoUseTopicAlias?: boolean,
+  autoAssignTopicAlias?: boolean,
   properties?: {
     sessionExpiryInterval?: number,
     receiveMaximum?: number,
     maximumPacketSize?: number,
-    topicAliasMaximum?: number,
     requestResponseInformation?: boolean,
     requestProblemInformation?: boolean,
     userProperties?: UserProperties,