Update to window batch script
Update to window batch script

Fixed issues with missing blank lines in the output SQL which were causing issues.
Added more comments including a new header section on the overall process.

rorydavidson/SNOMED-CT-Database,rorydavidson/SNOMED-CT-Database,IHTSDO/snomed-database-loader,rorydavidson/SNOMED-CT-Database,IHTSDO/snomed-database-loader,IHTSDO/snomed-database-loader