[neeo] Convert to OH jetty HttpClient (#15571)

[neeo] Convert to OH jetty HttpClient (#15571)

* Convert to OH jetty HttpClient
* Adds a Stack for HttpClient storage
* Add synchronized to prevent exception
* fix binding
* Stop stack on close
* Resolves exception on registring forward actions
* Reduces client count to 5 to align to expected thread pool limit of 5

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Signed-off-by: Ben Rosenblum <rosenblumb@gmail.com>
Co-authored-by: Mark Herwege <mark.herwege@telenet.be>