Changes to south yard Sci-annex (#5792)

# About the pull request

South Yard kind of sucks alot to fight in this PR opens it up, removes
alot of hullwalls and tries to make it slightly more enjoyable

# Explain why it's good for the game

Sci-annex is a bumbling mess of chokes this area is a mass of 1x1s 2x2s
and longhalls this tries to rectify this slightly

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl: SpartanBobby
maptweak: Edits to southyard sci-annex
/:cl: