Feat intelligent ranking

[ivan-tse]

Description

Adds PersonalizedRankingV2 recipe to personalize intelligent ranking plugin. Example of change when creating pipeline with the new recipe:
curl -X PUT "http://localhost:9200/_search/pipeline/intelligent_ranking" -u 'admin:admin' --insecure -H 'Content-Type: application/json' -d'
{
"description": "A pipeline to apply custom reranking",
"response_processors" : [
{
"personalized_search_ranking" : {
"campaign_arn" : "arn:aws:personalize:us-east-1:080258283992:campaign/opensearch-campaign",
"item_id_field" : "",
"recipe" : "aws-personalized-ranking-v2",
"weight" : "0.25",
"iam_role_arn": "",
"aws_region": "us-east-1"
}
}
]
}'

Testing

./gradlew build and tested locally by running above command

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed as per the DCO using --signoff

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