Make QueryResult<T>.Data read-only with IReadOnlyList<T>

Improve connection state checks in DataSession

Update README.md

Add negated string filter operators

Add query request models and JSON filter support

update packages

Capture and trim SQL Server PRINT/log messages

Merge branch 'master' of https://github.com/loresoft/FluentCommand

Validate JsonColumn and use fully-qualified types

Handle nullable props and required JSON readers