Request: load individual instrument in memory per soundfont

[litaniast]

Thanks for great soundfont player in x64 DAW.
But, current juicysfplugin loads entire soundfont, so, if I load huge soundfont (like Musyng Kite https://www.kvraudio.com/forum/viewtopic.php?t=351893 ), It loads also that instruments doesn't use.
Current juicysfplugin isn't multi-timbral, so other instruments that doesn't use is useless.

For other soundfont player like sfz soundfont player, has SF/PR/DFD mode. SF mode loads entire soundfont, PR mode loads individual soundfont, and DFD loads sound in disk per playing sound.

Many soundfonts have multi instruments, so I think this feature is needed for future version.