A Bunch of Stuff

[hallem]

• moved logic off models and into services
• migrated individual archive settings to an archive object collection
• added display modes command line support
• simplified and cleaned up the main program and command line parser
• fixed rerun after update with a path parameter bug
• added support to check pocket extra version on update
• added jtbeta check for pocket extras
• added obsidian.Vectrex to the list of cores to skip processing the instance json files for since the roms aren't going to be in the main archive
• added support for the new vectrex extras by dyreschlock

I think that's it.