* Cleaning up commits

* Column normalization before adding dlt columns, test fixes

* Func for adding dlt columns refactored

* Star handler, column normalizer, schema column matcher, dlt adder

* fix in the match schema with columns

* Redshift dlt id hash func added, star expression handler fixed

* Additional comment in the _normalize_selected_columns func

* aliased column test fixed

* Unnecessary stuff removed, select now left intact, only outer query is processed, test skeleton added

* New test added to check normalization of columns

* casefolder added to normalization, test for mssql fixed

* Test for normalizer, data types test

* sqlite _dlt_id workaround and data contract tests

* Raise on non-select in writer and model builder

* need for reordering detection, star selection disallowed

* Normalizer improvements, test fixes

* Essential tests marked

* Test with insert from two tables

* Essential marks removed

* Monkeypatch replaced with preserve_environ, athena iceberg sql job assertion added

* Model item format tests improved, redshift dlt id now uses load it

* Columns not present in the schema, but not select, added as null only if nullable

* test_simple_model_normalizing with a more extended example

* Necessary tests marked as essential

* Caps fixture improved

* Star select rejection and corresponding test moved and simplified

* Star schema with additional columns now also rejected

* Test setup for query edge cases on duckdb dialect

* Test fixes and additionas, star select rejects t1.*

* Add_dlt_id now disabled by default, config test added, star checking removed from load

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Co-authored-by: anuunchin <[email protected]>