ISSUE-13158: [DISCUSS] proposal: APISIX support Pulsar service plugin

[sijie]

Original Issue: apache#13158

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Hi, community,

My name is Yeliang Wang, and I am Apache APISIX Committer.

At present, Apache APISIX supports Kafka in real-time log processing (https://apisix.apache.org/docs/apisix/plugins/kafka-logger/ ) ,and RocketMQ has also submitted PR to support APISIX (https://github.com/apache/apisix/pull/5653)

but, in many enterprises I met, Apache Pulsar is used in both transaction and log scenarios.

As a distributed message middleware, Apache Pulsar has a very important position and a large user base in China, It also has a good cooperative relationship with APISIX community.

Therefore, I suggest that Pulsar contribute relevant plug-ins to APISIX, which can not only meet the diversified needs of users, so enrich the surrounding ecology of Pulsar.

This is my suggestion.
Developers are welcome.

Thanks.

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