add annotated script to generate RN Changelog (#10468)

src/utils/generate-prlist-rn.rb

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+# This script creates a list of **merged** PRs for a release
+
+# gh --repo inavflight/inav pr list --state merged -S "milestone:8.0" -L 500 --json "number,title,author,url" > /tmp/gh.json
+# Then process the output `/tmp/gh.json` with this script
+# ./generate-prlist-rn.rb /tmp/gh.json > /tmp/rel8prs.md
+#
+# Then merge the contents of `/tmp/rel8prs.md` into the release notes
+
+require 'json'
+abort("Need the JSON file") unless ARGV[0]
+text = File.read(ARGV[0])
+jsa = JSON.parse(text)
+jsa.each do |js|
+  puts "* #%d %s by @%s\n" % [js['number'],js['title'],js['author']['login']]
+end