Pravega Spark Connectors 0.13.0

Release 0.13.0 of Pravega Spark Connectors

This release support Spark version 3.4 on Scala 2.12. It is tested and validated with Pravega 0.13.0 release.

Highlight features:

• (#158) Support for Spark 3.4
  We have added support for Spark 3.4, along with this, the artifact name for Spark 3.4 connector is switched back to pravega-connectors-spark-3.4_2.12, you can now import the dependency like this

<dependency>
    <groupId>io.pravega</groupId>
    <artifactId>pravega-connectors-spark-3.4_2.12</artifactId>
    <version>0.13.0</version>
</dependency>

Here is the complete list of commits: changelog-spark.txt