S tables s1251 aand s1301 changes

[Sudhishak1996]

This is a new PR raised to resolve conflict issues in the previous pr

[gemini-code-assist]

Summary of Changes

Hello @Sudhishak1996, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request integrates new data processing pipelines for two key US Census American Community Survey (ACS) 5-year subject tables: S1251 (Marital Status and History) and S1301 (Fertility). It includes the necessary specification files, cleaned data, and mapping outputs to accurately represent and ingest these demographic datasets, ensuring their proper structure and interpretation within the system.

Highlights

• New Data Ingestion for S1251: Introduced a complete set of files for the S1251 subject table, including its specification, cleaned data, and MCF/TMCF outputs.
• New Data Ingestion for S1301: Added a full suite of files for the S1301 subject table, encompassing its specification, cleaned data, and MCF/TMCF outputs.
• Detailed Data Specifications: The _spec.json files define comprehensive rules for data preprocessing, population types, measurement properties, property-value mappings, and handling of ignored columns and denominators for both S1251 and S1301.

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[gemini-code-assist]

Code Review

This pull request introduces support for two new ACS subject tables, S1251 and S1301, by adding specification files, test data, and expected outputs. My review identified a critical JSON syntax error in S1251_spec.json that would prevent it from being parsed, and a data modeling issue in S1301_spec.json that could lead to incorrect data classification. Addressing these points will ensure the correctness and robustness of the new data ingestion pipelines.