Release 0.6.56

Validate deferred ODBC parameter metadata

dependencies update & odbc fixes

deps

 - support for extracting underlying db-specific type from AnyValueRef

sql named instance support

 - Added support for SQL Server named instances with automatic port discovery via SSRP (SQL Server Resolution Protocol). You can now connect using `mssql://user:pass@host/db?instance=SQLEXPRESS` and the port will be automatically discovered.
 - odbc: no warning when statement row count is unavailable

stable odbc support

datetime_fixes

fix binary extraction