Improve JAR packaging (re-packaged net.jpountz.lz4)

[dgloeckner]

When both Apache Spark and ClickHouse4j are on the classpath, the following issue occurs.

java.lang.NoSuchMethodError: 'void net.jpountz.lz4.LZ4BlockInputStream.<init>(java.io.InputStream, net.jpountz.lz4.LZ4FastDecompressor, java.util.zip.Checksum, boolean)'
       org.apache.spark.io.LZ4CompressionCodec.compressedInputStream(CompressionCodec.scala:153)
       org.apache.spark.sql.execution.SparkPlan.decodeUnsafeRows(SparkPlan.scala:367)
       org.apache.spark.sql.execution.SparkPlan.$anonfun$executeCollect$1(SparkPlan.scala:391)

<dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_${scala.version}</artifactId>
            <version>${spark.version}</version>
        </dependency>
        <dependency>
            <groupId>cc.blynk.clickhouse</groupId>
            <artifactId>clickhouse4j</artifactId>
        </dependency>

The root cause of this are the re-packaged classes from net.jpountz.

Could you please consider to either

• relocate the classes in ClickHouse4j JAR (https://maven.apache.org/plugins/maven-shade-plugin/examples/class-relocation.html)
• or set the scope to provided and not include them