gl: strech direct fb texture based on stretching and rotation
Fix lighgun coords when stretching and/or rotating
Dimension render size based on stretching and rotation
vk: lightgun crosshair disappears near 0-edge -> scissoring x and y must
be >= 0
always stretch horizontally even when rotating
Fix per-game settings (Issue #115)
Automatic load/save state (Issue #173)
Reload Naomi/AW BIOS after per-game settings are loaded to allow
per-game BIOS region. (Issue #96)
Restrict Soul Reaver widescreen cheat to the EU version (Issue #188)
Disable UI elements for overridden settings
Clean up/simplify legacy Naomi ROM loading