Shotguns once again

[GuardianDll]

Summary

Content "Added two shotguns, streamlined another two"

Describe the solution

• Add Standard Manufacturing DP-12 (very ridiculous gun)
• Add SRM Arms Model 1216 (very cool, but no less ridiculous gun)
• Change the way ts12 and ksg was made - two and three tube respectively were emulated by having a main gun that contain one tube, and second/third gun under the barrel that can also store ammo and be used. Sound cool for storing slugs in one barrel, while spending beanbags from another, unfortunately was either a hell to micromanage, or made you utilize only the single mag, removing the only benefit they have. Now instead of three guns in a trenchcoat it's just a single gun

Testing

Walked around, tested itemgroups, shoot some guns

Additional context

I sadly found that even with gunbroker account, the advanced search simply refuses to work for me, so this is only the lots that are currently sold at the gunbroker
Still should be plenty enough (also reminder that guns are not discontinued yet)

Migration works as expected

[DoctorBoomstick]

Doom Guy is nodding in approval.

[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 16-round rotary magazine for that strangest of beasts, the SRM Arms Model 1216 shotgun.
• DP-12
• DP-12s
• SRM Arms Model 1216
• SRM Arms Model 1216 16-round magazine
• SRM Arms Model 1216 16-round magazines
• SRM Arms Model 1216s

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.

Hints for adding a new word to the dictionary

• If the word is normally in all lowercase, such as the noun word or the verb does, add it in its lower-case form; if the word is a proper noun, such as the surname George, add it in its initial-caps form; if the word is an acronym or has special letter case, such as the acronym CDDA or the unit mW, add it by preserving the case of all the letters. A word in the dictionary will also match its initial-caps form (if the word is in all lowercase) and all-uppercase form, so a word should be added to the dictionary in its normal letter case even if used in a different letter case in a sentence.
• For a word to be added to the dictionary, it should either be a real, properly-spelled modern American English word, a foreign loan word (including romanized foreign names), or a foreign or made-up word that is used consistently and commonly enough in the game. Intentional misspelling (including eye dialect) of a word should not be added unless it has become a common terminology in the game, because while someone may have a legitimate use for it, another person may spell it that way accidentally.

[Holli-Git]

Gotta say, thanks for adding the SRM! Such a goofy lil goober