Updates and bug fixes

Updated cropped handheld graphics and presets. Added a local override section for LCD presets. Did some house cleaning.

added PASSTHROUGH overrides

Added Creating_An_Overlay_Using_The_Mega_Bezel.md guide.

Added missing Lynx params

VertImages removed, Watara Bezel added, Lynx Updated

added NDS hybrid layout

some house cleaning, added Infocom Z-Machine

fixed some paths, updated TV6 Alt

Fixed Palm and ColecoVision, deleted unneeded graphics

updated res folder

updated Params folder

renamed DOSBox_5150 to IBM_5150 and added new presets

added missing default Vectrex image

Reduced Vectrex presets to two presets with wildcards