Adding winicon patch

patch/bar_winicon.h

@@ -0,0 +1,8 @@
+#include <Imlib2.h>
+#include <limits.h>
+#include <stdint.h>
+
+void drw_img(Drw *drw, int x, int y, XImage *img, uint32_t *tmp);
+static XImage *geticonprop(Window win);
+static void freeicon(Client *c);
+static void updateicon(Client *c);