fix(a380x/doors): disallow opening doors in mid-flight

[2hwk]

Fixes #[issue_no]

Summary of Changes

Blocks door from opening above a certain positive pressure difference between cabin and outside.

Screenshots (if necessary)

References

Additional context

Discord username (if different from GitHub): 2cas

Testing instructions

• Takeoff and reach altitude of 3000 FT
• Check delta pressure (either on cruise SD page, or by pressing PRESS) is above 1.0
• Attempt to open a cabin door (go into the cabin and click the lever)
• Door should not open

How to download the PR for QA

Every new commit to this PR will cause new A32NX and A380X artifacts to be created, built, and uploaded.

1. Make sure you are signed in to GitHub
2. Click on the Checks tab on the PR
3. On the left side, find and click on the PR Build tab
4. Click on either flybywire-aircraft-a320-neo or flybywire-aircraft-a380-842 download link at the bottom of the page

[2hwk]

In practice, this should never happen that the cabin is pressurized and the door is open, however this condition allows for correcting possible bugs where if the plane spawns with the door open (and cabin is pressurized), that the door can still be closed.

[mjuhe]

When the pressurization simulation reads all door states, this will never happen as you would get cabin decompression if a door is open with delta P > 0. But since that's still not done, this looks good to me.

[JasonO99]

Quality Assurance Report
Completing to support QA on A380X PR's

Object of Testing:
Aircraft: A380X
Date: 20/10/2024

Testing Process
On the ground opened front most doors with lever from within cabin to ensure doors still open when valid conditions to do so

Taken off and reached altitude of 3000FT
Delta Pressure at 3000FT showed 1.4
Entered cabin using cockpit free cam again and clicked on lever on front L1 and R1 doors. Nothing happened upon clicking lever - lever and door did not animate

Positives: Doors did not open during defined testing conditions as expected
Negatives: None noted

Testing Results: Passed