Update Write-ObjectToSQL.psm1

[leogargioni]

I had an issue where the first row of my $InputObject had some values that were from the DBNull type, and thus were ignored. By performing this update I was able to ignore those and use data from other rows as examples to the script, so that it could identify the correct Type for the column.

[leogargioni]

Please note I only changed line 621 from the original. All other lines were modified by GitHub web interface because of the line ending. I have also added some comments for the version, which you can definitely change as you prefer.