NEW: Throw error when extension for inputsystem needed

[ritamerkl]

Description

Trying to use Input System package on console without the NDA package installed outputs an error message to the user.
The error is thrown in [OnInitializeLoad] and performs on loading a project, on switching platforms and domain reload.
Link to the related ticket.

GXDK extension registeres it self with this PR.

Testing status & QA

Manual testing for Switch platform.
Platforms missing: (which should surface this error without the installed Plugin)
-gamecore
-playstation (4&5)
-switch
-xboxone

Overall Product Risks

Please rate the potential complexity and halo effect from low to high for the reviewers. Note down potential risks to specific Editor branches if any.

• Complexity:
• Halo Effect:

Comments to reviewers

Please describe any additional information such as what to focus on, or historical info for the reviewers.

Checklist

Before review:

• Changelog entry added.
  • Explains the change in Changed, Fixed, Added sections.
  • For API change contains an example snippet and/or migration example.
  • JIRA ticket linked, example (case %%). If it is a private issue, just add the case ID without a link.
  • Jira port for the next release set as "Resolved".
• Tests added/changed, if applicable.
  • Functional tests Area_CanDoX, Area_CanDoX_EvenIfYIsTheCase, Area_WhenIDoX_AndYHappens_ThisIsTheResult.
  • Performance tests.
  • Integration tests.
• Docs for new/changed API's.
  • Xmldoc cross references are set correctly.
  • Added explanation how the API works.
  • Usage code examples added.
  • The manual is updated, if needed.

During merge:

• Commit message for squash-merge is prefixed with one of the list:
  • NEW: ___.
  • FIX: ___.
  • DOCS: ___.
  • CHANGE: ___.
  • RELEASE: 1.1.0-preview.3.

After merge:

• Create forward/backward port if needed. If you are blocked from creating a forward port now please add a task to ISX-1444.

[Pauliusd01]

Is this only when trying to build the actual player? Or should it also work for simply switching to the platform atm? Since I tried to switch to the xbox player and I'm able to run scenes in play mode without any of the warnings. One note, I have the platform installed but I do not have its GDK which might be the cause? Never mind I switched scenes and suddenly it works, will mess around a bit more, might be a false alarm

[Pauliusd01]

LGTM here's a list of things I checked:

Opening a project with the platform already pre-selected - works as expected, error shows up
Switch to windows from a console platform - no error, as expected
Built on Xbox series x without the extension package - no error, but seems to be expected
Custom build profiles (with a console platform included) - error shows up without the extension as expected, cleared with the extension as expected
Xbox series X profile and Xbox extension installed - errors stop showing up as expected
Xbox profile and incorrect extension installed - still get the error as expected

I repeated the above with PS4, PS5 & Switch with only their Editor extensions built (It just means I can I use the platform in Editor as normal but cannot build the player. So keep in mind that these platform players were not built) and had the same expected results.

[lyndon-unity]

Thanks for the updates