SCCM Indexing and Filelib Hash Resolution

[ZephrFish]

Needs more testing in broader environments HOWEVER this is working in my home lab with 8 machines

Re-submitting because computers were a mistake and git broke in my VM 💯

Add SCCM integration with automatic discovery and content library resolution:

• Implement SCCM share discovery (SCCMContentLib$, SCCM$, etc.)
• Add content library file hash resolution using DataLib index
• Support for INI-based content hash lookups and file mapping
• LRU cache for efficient repeated hash resolutions
• Detection rules for SCCM deployment packages and content files
• Hash resolution logic borrowed from CMLoot for accurate file identification, if you're curious about the logic I read the blog post originally here then found the tool

New components:

• SCCMDiscovery.cs: Automatic SCCM share enumeration
• SCCMContentLibResolver.cs: Content library hash resolution
• SCCMFileMapping.cs: File path to content hash mapping
• LRUCache.cs: Caching layer for performance
• KeepSCCMContentFiles.toml: Detection rule for SCCM content

Integration points:

• ShareFinder: SCCM share detection and prioritization
• TreeWalker: SCCM-aware file enumeration
• FileClassifier: SCCM content identification

.NET Framework updates:

• Update TargetFrameworkVersion from v4.5.1 to v4.8 to match SnaffCore.csproj
• Resolves CI build compatibility issues