Adding create search pipeline step

[amitgalitz]

Description

Added create search pipeline step by creating an abstract create pipeline step since both have same required in puts and almost exact same logic:

example:

{
                    "id": "create_search_pipeline",
                    "type": "create_search_pipeline",
                    "previous_node_inputs": {
                        "deploy_openai_model": "model_id"
                    },
                    "user_inputs": {
                        "pipeline_id": "rag_pipeline",
                        "configurations": {
                            "response_processors": [
                                {
                                    "retrieval_augmented_generation": {
                                        "tag": "openai_pipeline_demo",
                                        "description": "Demo pipeline Using OpenAI Connector",
                                        "model_id":"${{deploy_openai_model.model_id}}",
                                        "context_field_list": [
                                            "text"
                                        ],
                                        "system_prompt": "You are a helpful assistant",
                                        "user_instructions": "Generate a concise and informative answer in less than 100 words for the given question"
                                    }
                                }
                            ]
                        }
                    }
                }

Issues Resolved

resolves #545

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[dbwiddis]

LGTM with some nits.

[joshpalis]

LGTM pending fixes for the nits @dbwiddis mentioned

[owaiskazi19]

LGTM with a minor comment

[codecov]

Codecov Report

Attention: Patch coverage is 84.12698% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 72.48%. Comparing base (7a2d9d9) to head (d3a3708).

Files	Patch %	Lines
...framework/workflow/AbstractCreatePipelineStep.java	80.76%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #569      +/-   ##
============================================
+ Coverage     72.24%   72.48%   +0.24%     
- Complexity      653      657       +4     
============================================
  Files            78       80       +2     
  Lines          3397     3416      +19     
  Branches        269      270       +1     
============================================
+ Hits           2454     2476      +22     
+ Misses          825      822       -3     
  Partials        118      118              

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[owaiskazi19]

This change would also require an update to the documentation because we are introducing new param configuration here.

[amitgalitz]

This change would also require an update to the documentation because we are introducing new param configuration here.

Good call out, and new steps

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/flow-framework/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/flow-framework/backport-2.x
# Create a new branch
git switch --create backport/backport-569-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 bc2306b451e85f91a62952f16fcf23c2e9a8733c
# Push it to GitHub
git push --set-upstream origin backport/backport-569-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/flow-framework/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-569-to-2.x.