SQL Server bit is not converted to True/False in row validation when comparing with bool

[nj1973]

Describe the bug
SQL Server bit is not converted to True/False in row validation when comparing with bool

See test test_row_validation_sql_server_to_postgres (search for issue-1583") for details.

What type of connections are you using for source and target?
SQL Server, PostgreSQL

Steps to reproduce the behavior
Row validate a SQL Server bit vs a PostgreSQL boolean.

Expected behavior
The bit value should be converted to string "True" or "False".

[nj1973]

This issue needs the tests added in #1577.