allow third party to use functional testing base class #12

Job	Run time
PHPUnit with PHP version matrix (8.1, 16, pdo_pgsql, lowest)	1m 41s
PHPUnit with PHP version matrix (8.1, 16, pdo_pgsql, highest)	2m 7s
PHPUnit with PHP version matrix (8.2, 16, pdo_pgsql, lowest)	1m 35s
PHPUnit with PHP version matrix (8.2, 16, pdo_pgsql, highest)	1m 37s
PHPUnit with PHP version matrix (8.3, 16, pdo_pgsql, lowest)	1m 45s
PHPUnit with PHP version matrix (8.3, 16, pdo_pgsql, highest)	1m 44s
PHPUnit with SQL Server (8.1, pdo_sqlsrv, mssql)	2m 20s
PHPUnit with MySQL (8.1, 8.0, mysqli)	2m 6s
PHPUnit with MariaDB (8.1, 10.11, mysqli)	1m 52s
PHPUnit with MySQL (8.1, 8.0, pdo_mysql)	1m 37s
PHPUnit with PostgreSQL (8.1, 10, pgsql)	1m 56s
PHPUnit with MariaDB (8.1, 10.11, pdo_mysql)	1m 52s
PHPUnit with MySQL (8.1, 8.2, mysqli)	1m 42s
PHPUnit with SQLite (ubuntu-22.04, 8.1, pdo_sqlite)	56s
PHPUnit with PostgreSQL (8.1, 10, pdo_pgsql)	1m 35s
PHPUnit with MySQL (8.1, 8.2, pdo_mysql)	2m 5s
PHPUnit with MariaDB (8.1, 11.0, mysqli)	1m 59s
PHPUnit with PostgreSQL (8.1, 15, pgsql)	2m 5s
PHPUnit with MariaDB (8.1, 11.0, pdo_mysql)	2m 2s
PHPUnit with SQLite (ubuntu-22.04, 8.1, sqlite3)	56s
PHPUnit with PostgreSQL (8.1, 15, pdo_pgsql)	1m 37s
PHPUnit with MariaDB (8.1, 11.1, mysqli)	2m 5s
PHPUnit with PostgreSQL (8.1, 16, pgsql)	2m 6s
PHPUnit with MariaDB (8.1, 11.1, pdo_mysql)	2m 0s
PHPUnit with PostgreSQL (8.1, 16, pdo_pgsql)	2m 1s
	45m 21s

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