* Support TimeTravelTraceInterop in function resolver.

- The function resolver isn't loaded when the base monitor is
TimeTravelTraceInterop, which needs it to resolve function for function
breakpoint.
- To add TimeTravelTraceInterop to the right vsdconfigxml file, I also
need to update some package so that it can be built.

* Address PR feedback.

- PrivateVisualStudioPackage isn't necessary since I set PrivateAssets=true in the package reference.