feat: Compression script with compressed images

Also modified genicons.sh

Signed-off-by: txtsd <code@ihavea.quest>

scripts/compress_images.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+## If current working dirctory is ./scripts, ask to invoke from one directory up
+if [ ! -d "scripts" ]; then
+	echo "Please run this script from the root directory of the project"
+	exit 1
+fi
+
+find . -type f -name '*.png' -not -path '*/libraries/*' -exec oxipng --opt max --strip all --alpha --interlace 0 {} \;