add fish functions

fish/functions/extract_audio.fish

@@ -0,0 +1,4 @@
+function extract_audio
+    ffmpeg -i "$argv[1]" -q:a 0 -map a "$argv[2]"
+end
+

fish/functions/lights.fish

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+function lights
+    set lights (huectl light get | sed '/\"id\"/!d; s/.* \"//; s/\".*//')
+
+    for l in $lights
+        huectl light set $l $argv
+    end
+end
+

fish/functions/newtmp.fish

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+function newtmp
+    set dir /tmp/(uuidgen)
+    mkdircd $dir
+end
+