add texture generation scripts from https://github.com/zeuner/signs-font-generate

util/unicode-numbers.sh

@@ -0,0 +1,22 @@
+(
+    echo -n "$1"|
+    xxd -ps|
+    sed 's/../echo $((0x&))\n/g'|
+    sh
+    echo -n "$1"|
+    iconv -f utf-8 -t utf-32|
+    xxd -ps|
+    sed s/fffe0000//|
+    sed 's/../&\n/g'|
+    grep .|
+    tac|
+    tr "
+" " "|
+    sed 's/ //g'|
+    sed s/^00//|
+    sed s/^00//|
+    sed 's/.*/"&"/'
+)|
+tr "
+" ","|
+sed 's/.*/{&}\n/'