NOTICE.TXT contains insufficient third party libraries information

There are few third part dependencies that are not listed.

## Version
5.4

## Repro
l. Download logstash 5.4 tarball from https://www.elastic.co/downloads/logstash
l. Untar the tar file.
l. Inspect gemfiles under vendor/bunderl/jruby/1.9/gems
l. Inspect gem files under vender/jruby/lib/ruby/gems/shared/gems
l. Inspect jar files shipped with the tarball

## Expect
All shipped third party libraries listed in NOTICE.TXT

## Got
Partial listing