Handle per-car, per-game and global properties

• generate .zip file for Release
• document error messages
• SetDefault() on first car bug fix
• disable sorting property columns in UI
• feedback for property value change
• handle too short slim.data.gList[gndx].cList[0].Vlist.Count
• distinct per-game properties
• handle property moves (by .ini reconfiguration) among per-car, per-game and global
• handle JSON filename not 'JSONio.json'
• save global properties and all property names to Settings
• still get SimHub [WatchDog] Stacks dump for OOps() MessageBox.Show() popups
• defer any MessageBox.Show() until GetWPFSettingsControl()