v2.4.0-beta.1 experimental features

SqlHydra.Cli

• Added new "mutable_properties" option to toml "general" section which makes all record properties mutable. 🙀 (defaults to false, of course 😉). This is for in-memory apps that want to bind to generated types directly for edits.
• Postgres now generates materialized views (requires net8 and npgsql v8 or greater). #84
• All providers will now ignore any tables / views with no columns (just in case)

SqlHydra.Query

• Added an experimental Diff utility to assist with saving batch changes. #83
• Exposed KataQuery property on all queries (the resulting type of query builders) to make it possible to manipulate the underlying SqlKata query for inserts, updates and selects before executing the query.