Rename VPMAlias.txt to VPMAlias_template.txt in installation zip.

[JockeJarre]

Many new and old users stuggle with the only file which should not just be overwritten when upgrading pinmame. If VPMAlias.txt is renamed to VPMAlias_template.txt in the installation zip files, one can safely unzip the whole content without overwriting content built up over months if not years.

Second advantage is that there will always be a VPMAlias_template.txt available as well which can be compared by the enduser, to amend new entries.