Improvements to the Weapons page

We have made some improvements to our Weapons page.

• Added a few mission models, and corrected some vendors for models
• In the weapons list it will now show the unique and base models count
• Removed the filter for unique models, and instead show the list of the unique models with the child models within them.
• Weapon models can now be commented on, unless it is part of a weapon builder page.
• Hidden the weapon builder, it is now available on a button at the bottom of the model page.

Thank you to Faalagorn who has made some great suggestions and assisted in work on this page.