add batman beyond config

.config/fish/functions/bb.inc_brightness.fish

@@ -0,0 +1,15 @@
+#!/bin/fish
+
+function inc_brightness
+
+    brightnessctl -q set +5%
+
+    set -f cur ( brightnessctl get )
+    set -f max ( brightnessctl max )
+
+    set -f ret ( math -s0 "100 * $cur / $max" )
+
+    #echo $ret > /tmp/xobpipe
+    echo $ret
+
+end