docs: update wiki for MongoDB.Driver 3.x upgrade and fix inaccuracies
- Updated driver version requirement from 2.28.0+ to 3.0.0+
- Removed LINQ2 references (LINQ2 removed in Driver 3.x)
- Removed Cosmos DB terminology (GetItemLinqQueryable, ETag, _rid, GetContainer)
- Fixed Build() return type: IMongoClient, not InMemoryMongoResult
- Fixed ClearDocuments() signature: takes no parameters
- Fixed mongo.Client.GetDatabase() -> mongo.GetDatabase() (Builder pattern)
- Removed non-existent StatePersistenceDirectory feature
- Added database-level change streams to feature lists
- Noted DistinctMany as not yet implemented
- Added v1.0.0 and v0.11.60 to What's New
- Updated Feature Comparison version to v1.0.0+
- Updated Migration Guide re: IDisposable (no-op)
rename: MongoDB.InMemoryEmulator -> InMemoryEmulator.MongoDB
Phase 11: Complete wiki documentation - 20 pages
Pages: Home, Getting Started, Unit Testing, How It Works,
Choosing Your Approach, Setup Guide, Multi-Database,
Seeding Data, State Persistence, Features, Feature Comparison,
Filter & Update Operators, Aggregation Pipeline, LINQ Support,
API Reference, Known Limitations, Troubleshooting, What's New,
Migration Guide, Sidebar navigation