PLT-8018: Bundled jira plugin (#7920)

* bundled jira plugin

* fix generated file formatting, add prepackaged key

* whoops, uploaded wrong file

* whitelist generated files for license check

* make it work for people without go/bin in their path

scripts/license-check.sh

@@ -5,7 +5,7 @@ count=0
 for fileType in GoFiles; do
     for file in `go list -f $'{{range .GoFiles}}{{$.Dir}}/{{.}}\n{{end}}' "$@"`; do
         case $file in
-            */utils/lru.go|*/store/storetest/mocks/*)
+            */utils/lru.go|*/store/storetest/mocks/*|*/app/plugin/jira/plugin_*)
             # Third-party, doesn't require a header.
             ;;
         *)