NINTV-DS Release Version 4.8

Nintellivision - an Intellivision Emulator for the DS/DSi. High compatibility, custom overlay support, high score saving, tons of input mapping - all the quality of life improvements you need!

V4.8 : 24-Jan-2024 by wavemotion-dave

.int files are now auto-detected as either .bin(+cfg) or .rom files. This allows you to rename .rom files or .bin files to .int and let Twilight Menu++ auto-launch Nintellivision.
Slight improvement to the Intellivoice driver to give a minor boost in performance (mostly for DS-Lite/Phat).
Added new keyclick enable option in Configuration (page 2) that produces the typical Intellivision keyclick when you press the 12-button keypad (on the DS lower screen).
Added a new level of sound quality 'Ultimate'. The default for the DSi and above is still 'High' as 'Ultimate' consumes significant CPU time but you can enable it on a per-game basis for some of the more simple games (e.g. Astrosmash, Beauty and the Beast, AD&D Tarmin, etc)
DS-Lite now enables Intellivoice on World Series Major League Baseball - sound quality is a bit rough on the older handheld but very playalbe.
Fixed save/restore state including when backtab latched is TRUE (Stampede, Masters of the Universe)
Fix for intellivoice games so there are no more glitches on the updated version of Same Game and Robots.
Fix for ecs games so they don't inadvertantly write over the last graphics card in memory (causing minor graphics corruption on some games)
Correction of one intellivoice coefficient value (thanks to documentation in JZINTV) so voice games sound their best.
Other minor tweaks and cleanup as time permitted.