Add source module to UWP logging output
Updated support/hololens/Servo.cpp to use url: google.com
New debug output:
```
RUST: DEBUG - html5ever::tokenizer - got characters None
RUST: DEBUG - script::script_thread - Processing event FromConstellation(ConstellationControlMsg::NavigationResponse).
RUST: DEBUG - html5ever::tokenizer - processing in state RawData(ScriptData)
```
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#23755
- [x] These changes do not require tests because we can't automatically test logging output.
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23783)
<!-- Reviewable:end -->
