Make netebpfext unit test resilient to fault injection.

[Shankar Seal (shankarseal)]

Co-authored-by: Copilot App 223556219+Copilot@users.noreply.github.com

Description

Fixes #5460 .

Issues

• Fault injection could cause the mock FwpmFilterAdd0() in usersim.dll to fail during the netebpfext test case initialization, prior to NMR hook provider could bind, leaving the corresponding provider unavailable. Subsequent tests assumed initialization had succeeded, accessed the missing provider data, and crashed on a null pointer.
• fault.log file was not getting uploaded
• netebpfext unit test was not built in native flavor.

Changes

The PR includes the following changes.

• Update usersim to support suspend/resume fault injection.
• Suspend usersim fault injection while the netebpfext test helper initializes and tears down.
• Add a unit test that exercises all NMR bindings with fault injection enabled.
• Require all expected NMR bindings for existing tests while excluding helper initialization from fault injection.
• Add a CI step that collects fault-injection logs so they are uploaded with the test results.
• Add NativeOnlyDebug configuration to netebpfext_unit.vcxproj.

Testing

Do any existing tests cover this change? Are new tests needed?

If new tests were added:

• Unit tests are added.
• Driver tests are added.
• Fuzz tests are added.

Documentation

Is there any documentation impact for this change?

Installation

Is there any installer impact for this change?