Request: weave deinterlacing

[sdsnatcher]

GBS-Control has the bob and "motion adaptive" deinterlacing algorithms.

Motion adaptive itself decides between bob and weave depending on motion of each area.

But please also make the plain weave deinterlace available. It's the better option for problems like #287 , and personally I find more comfortable to see "combed" lines on action scenes than the low resolution caused by bob.

As a bonus, weave also offers lower lag than motion adaptive and it's better for video-game content that's locked at 30fps (NTSC) or 25fps (PAL).

Note: just plain weave without interpolation. Exactly as a CRT circuitry would show the fields. Maybe only an option to enable field pairing (AKA "Weave on even").