- Make `BundleExtractToSpecificPath` and `BundleAndRun` tests use built test asset project (`HelloWorld`)
  - The `BundleExtractToSpecificPath` tests explicitly include `mockcoreclr` so that it will have native binaries to bundle
- Remove redundant `BundleAndRun.TestWith*Paths*` tests
  - These were running a self-contained (not bundled) application by invoking it using relative / absolute paths, which does not seem particularly useful. There was no difference in how they bundled the application or ran the bundled application.
- Move codesign check to `BundlerConsistencyTests` - trying to separate tests targeting the `Bundler` API from tests targeting single-file activation