* Syntax cleanup
* More minor cleanup, use Linq
* Fix broken features by using correct values
* Feature flags the same
* Features are modular
* No AlphaFS, more .NET versions
* Fix appveyor
* Put back identifiers, for some reason
* String interpolation, modernization
* Better use of GetField
* XmlTextWriter to remove possible issues
* Fix header for OpenMSX
Add a new "BaseFile" class for potential future use. This should be the "base" for all future files and folders that could exist. This is likely to change over time.
This is a special merging mode that counts on newer versions of MAME not respecting the romof tags, leaving parents with files that are not actually required by the children. This new merging mode ignores those romof and cloneof tags, using devices only to add more required roms.
