[WIP] Add SysDocs for automating Systems Engineering documentation

[Copilot]

• Set up .NET solution structure with proper project organization
• Create core domain models for document processing
• Implement document parsers (Markdown, Word, LaTeX, PDF)
• Implement image handlers (SVG, PNG, TIFF, JPEG)
• Implement PDF output generator with template support
• Implement Git integration for version control connectivity
• Implement trace and change reporting
• Add unit tests for all components
• Update README with comprehensive documentation

Original prompt

SysDocs is an open-source .NET tool that automates INCOSE-aligned Systems Engineering documentation. It ingests Markdown, Word, LaTeX, and PDFs, outputs deterministic PDFs with custom templates, supports SVG/PNG/TIFF/JPEG images, connects to Git, and guarantees identical results across platforms with full trace and change reporting.

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