Bump Flint version to 0.2.0

[dai-chen]

Description

Bump Flint current version to 0.2.0 in main branch.

Testing

Version in artifact name:

$ sbt clean assembly
$ find . -name "*-0.2.0-SNAPSHOT.jar"
./spark-sql-application/target/scala-2.12/sql-job-assembly-0.2.0-SNAPSHOT.jar
./flint-spark-integration/target/scala-2.12/flint-spark-integration-assembly-0.2.0-SNAPSHOT.jar
./ppl-spark-integration/target/scala-2.12/ppl-spark-integration-assembly-0.2.0-SNAPSHOT.jar

Version in Flint index metadata (currently version field represents Flint code version. We can add another field specVersion for specification version as needed):

$  spark-sql \
 --jars /home/hadoop/flint-spark-integration-assembly-0.2.0-SNAPSHOT.jar 
 --conf spark.sql.extensions=org.opensearch.flint.spark.FlintSparkExtensions  ...

spark-sql> CREATE SKIPPING INDEX ON ds_tables.http_logs
         > (status VALUE_SET);
{
  "flint_myglue_ds_tables_http_logs_skipping_index": {
    "mappings": {
      "_meta": {
        "latestId": "ZmxpbnRfbXlnbHVlX2RzX3RhYmxlc19odHRwX2xvZ3Nfc2tpcHBpbmdfaW5kZXg=",
        "kind": "skipping",
        "indexedColumns": [
          {
            "columnType": "int",
            "kind": "VALUE_SET",
            "columnName": "status"
          }
        ],
        "name": "flint_myglue_ds_tables_http_logs_skipping_index",
        "options": {
          "auto_refresh": "false"
        },
        "source": "myglue.ds_tables.http_logs",
        "version": "0.2.0",
        "properties": {}
      },
      "properties": {
        "file_path": {
          "type": "keyword"
        },
        "status": {
          "type": "integer"
        }
      }
    }
  }
}

Issues Resolved

N/A

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