Adds system for gunmod conflicts

[tenmillimaster]

Summary

Features "Gunmod conflicts, with Bayonets Conflicts"

Purpose of change

It would be cool to be able to install a bayonet in addition to, say, a VFG. But it would not be cool to install an M203 with a bayonet, as they physically do not fit together, and in some other cases bayonets might obstruct the path of the barrel of other underslung projectile weapons.

It would also be nice to eliminate the need for the modified bayonets.

see #69221

Describe the solution

Adds a function for conflicts on gunmods to conflict with other installed gunmods.
Ironically The function I didn't find so useful, Gunmod conflicts with pre-existing slots, I found a use for when adding a rail bayonet mount. I didn't want to end up with 2 bayonet lugs on a gun, so I used the renamed blacklist_slot function to prevent this.
Renamed the Json entry for blacklist_mod to blacklist_slot for the gunmod conflicts with slots function, as I found this more descriptive.
Added bayonet lug slots to all appropriate guns and conversion kits.
Added a recipe for making a bayonet lug adapter.
Obsoleted all "modified" bayonet recipes and items. We can control where bayonets go with the bayonet lug location now, instead.

Describe alternatives you've considered

Doing nothing?

Testing

Attempting to install a bayonet on an AR with an m203 attached:

Attempting to install an M203 on an AR with a bayonet attached:

MP5 with a bayonet lug rail adapter, and a bayonet.

Attempting to install a rail bayonet lug on a gun that already has such a lug:

Attempting to install a suppressor on a gun that has a bayonet installed:

Attempting to install a bayonet on a gun that has a suppressor attached:

Checked that the migrations are happening correctly with the modified sword, USMC, NG, and Army bayonets.

Additional context

This is a redo of #69335

I'm aware that these exist and have no intention of adding support for them. https://www.thefirearmblog.com/blog/wp-content/uploads/2017/11/538954_10150992389200628_585168848_n.jpg

[github-actions]

Spell checker encountered unrecognized words in the in-game text added in this pull request. See below for details.

Click to expand

• A one-piece mount for attaching a bayonet to a firearm's accessory rail, in case that was a thing you wanted. Ideal for making newer guns pointier.

This alert is automatically generated. You can simply disregard if this is inaccurate, or (optionally) you can also add the new words to tools/spell_checker/dictionary.txt so they will not trigger an alert next time.