Add support of pulsar-kafka-adapter for kafka-0.9 api (#4886)

Fixes #4791

**Motivation**

Currently the Pulsar Kafka wrapper is using Kafka 0.10.x version. However, there are users who use legacy-kafka version in their system and willing to move to pulsar. This PR provides pulsar-kafka adapter for kafka-api-version 0.9.X. So, this adapter can help users in their migration process from kafka-0.9 to pulsar.
23 files changed