Sharpness of SD multisegment resizer

[vadosnaprimer]

https://github.com/TASEmulators/TASEncodingPackage/blob/d0798953e39468d849f4da6f22c094b8b31045ca/programs/functions.avsi#L21

This new approach (introduced in #12) does weird things with PCem startup. It takes this 640x680 frame

and resizes it to gameplay resolution of 800x600 like this

while it should be closer to this, to appear more like on a CRT monitor (and does appear if I comment out that line above)

Same deal with this 640x480 frame

that should look like this

[vadosnaprimer]

Should be fixed by #25