Add tools dir, include script for removing cf instances

This new dir will probably stay fairly empty, but this script could come
in handy for anyone seeking to add a new instance (for services that
aren't supported by the auto update workflow).

tools/un-cloudflare.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Remove cloudflare instances from services-full.json
+
+rm -f out.json
+file="services-full.json"
+
+while read -r line; do
+    if [[ "$line" == "\"https://"* ]]; then
+        domain=$(echo "$line" | sed -e "s/^\"https:\/\///" -e "s/\",//" -e "s/\"//")
+        ns=$(dig ns "$domain")
+        if [[ "$ns" == *"cloudflare"* ]]; then
+            echo "\"$domain\" using cloudflare, skipping..."
+        else
+            echo "$line" >> out.json
+        fi
+    else
+        echo "$line" >> out.json
+    fi
+done <$file
+
+# Remove any trailing commas from new instance lists
+sed -i '' -e ':begin' -e '$!N' -e 's/,\n]/\n]/g' -e 'tbegin' -e 'P' -e 'D' out.json
+
+cat out.json | jq --indent 2 . > services.json
+rm out.json
+