feat: game over and win screens *

feat:
- win screen
- "press enter to retry" in both screens
- reset moves only when winning the game

change:
- game over screen display
- display top-left move a little differently

dev:
- scripts to import different text sizes

dev/import_assets_text_30px.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+for PNG in $(find . -type f -name "*.png")
+do
+	# resize
+	convert "$PNG" -resize x30 "$PNG"
+	# extract color and alpha
+	convert "$PNG" -negate -alpha opaque "${PNG%.png}.xpm"
+	convert "$PNG" -alpha extract "${PNG%.png}.alpha.xpm"
+	rm "$PNG"
+done

dev/import_assets_text_65px.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+for PNG in $(find . -type f -name "*.png")
+do
+	# resize
+	convert "$PNG" -resize x65 "$PNG"
+	# extract color and alpha
+	convert "$PNG" -negate -alpha opaque "${PNG%.png}.xpm"
+	convert "$PNG" -alpha extract "${PNG%.png}.alpha.xpm"
+	rm "$PNG"
+done