Implement proper font handling

fonts/liberation_sans_14.xml

+<?xml version="1.0"?>
+<font type="bitmap">
+
+	<Texture index="0" filename="liberation_sans_14_img.png" hasAlpha="true" />
+
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+<c c="}" r="127, 44, 137, 66" />
+<c c="~" r="137, 44, 150, 57" />
+</font>
\ No newline at end of file