N64 Z button would be better mapped to L-Trigger

[PikaSamus]

Is your feature request related to a problem? Please describe. Right now, Z is mapped to R-Trigger on the virtual gamepad. More games use Z with the left hand than the right hand. This change would negatively affect games like Sin and Punishment which use the Z button with the right hand, but improve games like Mario 64.

Left/middle grip games are already pretty much unplayable with the virtual gamepad mappings anyway.

Describe the solution you'd like Change Z to be mapped to L-Trigger instead of R-Trigger.

Describe alternatives you've considered Both L-Trigger and R-Trigger could be mapped to Z, but I don't know if ares' virtual gamepad system supports that.