Refactor SQLPage functions into convention-driven modules #2566

Job	Run time
windows_test	4m 14s
docker_build (linux/amd64, minimal)	4m 3s
compile_and_lint	2m 6s
docker_build (linux/arm64, minimal)	4m 42s
hurl_examples	10s
docker_build (linux/arm/v7, minimal)	5m 25s
docker_build (linux/arm64, duckdb)	5m 38s
docker_build (linux/amd64, duckdb)	4m 36s
playwright	1m 9s
test (mssql, mssql, mssql://root:Password123!@127.0.0.1/sqlpage)	1m 8s
test (mysql, mysql, mysql://root:Password123!@127.0.0.1/sqlpage)	1m 1s
test (sqlite, sqlite::memory:)	35s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	1m 15s
test (oracle, oracle, Driver=Oracle 21 ODBC driver;Dbq=//127.0.0.1:1521/FREEPDB1;Uid=root;Pwd=Pas...	2m 19s
test (postgres, postgres, postgres://root:Password123!@127.0.0.1/sqlpage)	1m 27s
hurl (${{ matrix.example }})	-1s
docker_push	-1s
	39m 46s

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