Fix missing exec-to-stageId mapping in Qual tool

[amahussein]

Fixes #1156

This adds logic to walk the SparkGraph in order to assign execs to
stages. For nodes that have no AccumIDs, the clusterization processes
relies on adjacent nodes.

Some followups and improvements can be tracked in #1434

Refactoring and Improvements:

This pull request includes several changes to the com.nvidia.spark.rapids.tool package, focusing on improving the SQL plan analysis and stage mapping functionality. The changes involve refactoring methods, adding new interfaces, and updating tests to ensure comprehensive coverage.

• AppSQLPlanAnalyzer.scala: Removed the SQLPlanParser.getStagesInSQLNode method and replaced it with app.getStageIDsFromAccumIds to map stages to operators more efficiently.
• SQLPlanParser.scala: Refactored the parseSQLPlan method to use ToolsPlanGraph.createGraphWithStageClusters and updated related methods to utilize the new nodeIdToStagesFunc parameter for improved stage mapping. [1] [2] [3] [4]
• WholeStageExecParser.scala: Updated constructors to include the nodeIdToStagesFunc parameter and refactored methods to use this function for stage mapping. [1] [2] [3]
• PhotonStageExecParser.scala: Modified the constructor to include the nodeIdToStagesFunc parameter for consistent stage mapping.

New Interface:

• AccumToStageRetriever.scala: Introduced a new trait AccumToStageRetriever to define the interface for retrieving stage IDs from accumulables, allowing for better separation of logic and easier testing.

Test Updates:

• BasePlanParserSuite.scala and SQLPlanParserSuite.scala: Added new methods to verify that all execution nodes are assigned to stages and updated existing tests to ensure comprehensive validation of the new stage mapping logic. [1] [2] [3] [4]

These changes collectively enhance the accuracy and maintainability of the SQL plan analysis and stage mapping within the com.nvidia.spark.rapids.tool package.

[nartal1]

Thanks @amahussein ! I tested your PR on different eventlogs and the assignment of stageId's to execs is more accurate and I see lesser execs with no stageId's assigned to them. This will be useful as we have more execs assigned to stages.

[amahussein]

Thanks @nartal1 !
I have addressed your comments.

[nartal1]

LGTM. Thanks @amahussein !