Support MQTT-5 topic alias.

[mattisonchao]

Motivation

Support MQTT-5 topic alias. See specification https://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html

Modifications

• Support topic alias.

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Documentation

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Need to update docs?

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• no-need-doc

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• doc

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[codecov-commenter]

Codecov Report

Merging #688 (5901bbe) into master (4009d0d) will decrease coverage by 0.95%.
The diff coverage is 36.08%.

❗ Current head 5901bbe differs from pull request most recent head 59ec793. Consider uploading reports for the commit 59ec793 to get more accurate results

@@             Coverage Diff              @@
##             master     #688      +/-   ##
============================================
- Coverage     78.18%   77.22%   -0.96%     
- Complexity      955      964       +9     
============================================
  Files           108      111       +3     
  Lines          4107     4189      +82     
  Branches        309      320      +11     
============================================
+ Hits           3211     3235      +24     
- Misses          725      780      +55     
- Partials        171      174       +3     

Impacted Files	Coverage Δ
...exception/MQTTTopicAliasExceedsLimitException.java	0.00% <0.00%> (ø)
...qtt/exception/MQTTTopicAliasNotFoundException.java	0.00% <0.00%> (ø)
...lsar/handlers/mqtt/support/Qos1PublishHandler.java	47.94% <9.52%> (-16.21%)	⬇️
...native/pulsar/handlers/mqtt/TopicAliasManager.java	22.22% <22.22%> (ø)
...ulsar/handlers/mqtt/AbstractQosPublishHandler.java	85.29% <76.19%> (-9.45%)	⬇️
.../streamnative/pulsar/handlers/mqtt/Connection.java	88.75% <100.00%> (+0.14%)	⬆️
...lsar/handlers/mqtt/messages/MqttPropertyUtils.java	90.24% <100.00%> (ø)
...lsar/handlers/mqtt/support/Qos0PublishHandler.java	71.42% <100.00%> (ø)
...ar/handlers/mqtt/utils/PulsarMessageConverter.java	89.91% <100.00%> (+0.74%)	⬆️
... and 1 more

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