SQL Server tests use dbo.entries table #1785

In test test_sql_server_count, test_sql_server_row, test_schema_validation we use a hardcoded test table of dbo.entries.

This table is not referenced in sqlserver_test_tables.sql and should not be hardcoded in dbo.

We need to either:

1. Remove the tests because we have better tests for schema, row, column validation, or
2. Add DDL for entries to sqlserver_test_tables.sql and change the schema name to pso_data_validator.