* WIP add interop tests
* Clean up
* Move test project into build infrastructure
* Clean up
* Remove hardcoded paths
* Clean up
* Fix build
* Add copyright notices
* Update azure template
* Fix build
* Fix build?
* Fix build?
* Add gRPC interop tests to CI
- Convert to using references managed by build infrastructure
- Use produced AspNetCore.App shared framework
- Save server logs
- Dynamically bind to ports
- Ensure InteropWebsite is built in the same configuration as the test project
* Cleanup
* Rebase fix
* Include tests assets in build directory for Helix
* Incorporate changes in ProcessEx
* Include Grpc test in regular build
* Fixup
* Test
* exe doesn't always exist
* Capture logs on helix
* Maybe this will work
* There are two application started messages
* Derp
* Cleanup
* Update directory
* Add interop tests to more pipelines
* mkdir
Co-authored-by: John Luo <johluo@microsoft.com>