fix(packages): move to overlays

packages/scripts/odyssey.nix

@@ -0,0 +1,11 @@
+{ xmlstarlet, curl, writeShellScriptBin }:
+writeShellScriptBin "odyssey" ''
+  if [ $# -eq 1 ] && (echo "$1" | grep -Eq '[0-9]+\.[0-9]+'); then
+    ${curl}/bin/curl -Gs http://www.perseus.tufts.edu/hopper/CTS \
+      -d request=GetPassage \
+      -d "urn=urn:cts:greekLit:tlg0012.tlg002:$1" \
+        | ${xmlstarlet}/bin/xmlstarlet sel -t -v 'cts:GetPassage//tei:div'
+  else
+    echo you must supply BOOK.VERSE
+  fi
+''