add a way to specify resample method for xdisplay_mirror

[FoamyGuy]

And set the default method to NEAREST which "pixel perfect" scaling when used with something pixel arty that is scaled up by an even multiple of it's real size i.e. pico8 running at 768x768 to match the height of the display, but then being resized by PIL down to 128x128. With the NEAREST sampling method the result is 1:1 pixels with the original resolution of pico8 128x128.

Users can specify the other resample methods with the new command line argument for xdisplay_mirror

[jepler]

Neat! One small improvement to suggest tho.

[jepler]

  --resample-method [nearest|bilinear|lanczos|bicubic]
                                  The resample method for PIL to use when
                                  resizing the screen image.

the help will even list the methods this way

[jepler]

it doesn't list the default so that may be useful to leave in

[FoamyGuy]

Main is merged and conflicts resolved with the latest commit

[jepler]

thanks!