NSF Broadhead (New) - Medium Detective NSFD Vessel (new-frontiers-14#…

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* Adds the NSF Broadhead, a new medium size detective-oriented NSFD shuttle.

* Update Broadhead after review

* Removed old files after relocating them to the correct dir

* Security thrusters/gyro are now NFSD versions

* Updates to new prototype names

* Made requested changes and some other stuff

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Co-authored-by: Maxtone <[email protected]>