add scripts, mostly taken from LARBS

.local/bin/ifinstalled

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+# Some optional functions in LARBS require programs not installed by default. I
+# use this little script to check to see if a command exists and if it doesn't
+# it informs the user that they need that command to continue. This is used in
+# various other scripts for clarity's sake.
+
+for x in "$@";do
+	pacman -Qq "$x" >/dev/null 2>&1 ||
+		{ notify-send "📦 $x" "must be installed for this function." && exit 1 ;}
+done