Allow world processor to spwan hidden unit

[CutePillow]

Describe the content or mechanics you are proposing.

The world processor is the highest authority operating building in the game.So they should be able to use spawn units to generate hidden units (such as missiles for trauma).

Describe how you think this content will improve the game. If you're proposing new content, mention how it may add more gameplay options or how it will fill a new niche.

Can provide more interesting and creative gameplay when making maps

Before making this issue, check the boxes below to confirm that you have acknowledged them.

• [X] I have checked the Trello to make sure my suggestion isn't planned or implemented in a development version.
• [X] I am familiar with all the content already in the game or have glanced at the wiki to make sure my suggestion doesn't exist in the game yet.
• [X] I have read README.md to make sure my idea is not listed under the "A few things you shouldn't suggest" category.

[jehosula]

you can with advanced database pretty sure but it should be vanila accessible for sure

[github-actions[bot]]

This suggestion is now stale, and will be automatically closed.