add completion for gopass

completions/gopass.ksh

@@ -0,0 +1,21 @@
+PASS_LIST=$(gopass ls -f)
+set -A complete_gopass -- $PASS_LIST \
+	audit \
+	bin binary \
+	clone completion config copy cp create \
+	delete \
+	edit \
+	find fix fsck \
+	generate git grep \
+	h help hotp \
+	init insert \
+	jsonapi \
+	list ls \
+	mounts move mv \
+	new \
+	otp \
+	recipients remove rm \
+	search set setup show sync \
+	templates totp \
+	unclip update \
+	version