Add NIST SP 800-60 Volume II Information Types Catalog

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User Story:

As an OSCAL content developer, I need to have NIST SP 800-60 Volume II information types available in OSCAL format so that I can properly categorize information systems according to FIPS 199 security categorization requirements.

Goals:

Add a complete OSCAL 1.1.2 catalog containing all 171 information types from NIST SP 800-60 Volume II Revision 1 (Guide for Mapping Types of Information and Information Systems to Security Categories).

This catalog will include:

• 77 Management and Support Information Types (C.x.x.x series)
• 94 Mission-Based Information Types (D.x.x series)
• Proper FIPS 199 impact level assignments (Confidentiality, Integrity, Availability)
• Full metadata including DOI reference to the official NIST publication
• Comprehensive README documentation

This fills a gap in the OSCAL content repository, as SP 800-60 is a foundational document for federal information security but is not currently available in OSCAL format.

Dependencies:

None. This is a new contribution that adds content without modifying existing files.

Acceptance Criteria

• All 171 information types are properly represented in OSCAL 1.1.2 catalog format
• JSON file is valid and properly structured
• README documentation is included explaining the catalog structure and usage
• Files are placed in appropriate directory structure: nist.gov/SP800-60/v2r1/
• All readme documentation affected by the changes in this issue have been updated
• A Pull Request (PR) is submitted that fully addresses the goals of this User Story. This issue is referenced in the PR
• The CI-CD build process runs without any reported errors on the PR. This can be confirmed by reviewing that all checks have passed in the PR