Yuyuko Saigyouji 1.2

I decided to make another update to Yuyuko. This time, I modified her palette a bit to make the bright patches in her clothes stick out less and I completely remade her goal post sprite because I really didn't like how it looked before and I wanted to improve it, even throwing in a unique background for good measure. Just like the last update, the stats and voicelines are entirely unchanged.

This is a version that adjusts Yuyuko's colors to be more in line with the SRB2 color palette and also to make it more accurate to how she appears in the games. Stats and voicelines have not been touched.