Add logging support for task queue names (including Thread) and prefix.

- Add SetLogPrefix and SetLogQueueNames to LogMessage. By default there
  is no prefix and queue/thread names are not logged (existing
  behavior).
- When logging, limit tq names to 10 characters or less.
- Add unit tests for log prefixes and queue name logging.

Example printouts where the prefix is set to "Prfx: ". with and without thread id logging. In this example a task queue is temporarily running on the test thread, logs one entry and then is detached from the thread, reverting back to logging the thread name.

Without `LogThreads` enabled:

Prfx: [TName] (file:503): Prints the name of the thread.
Prfx: [QName] (file:511): Prints the name of the task queue.
Prfx: [TName] (file:518): Prints the name of the thread again.

With `LogThreads` enabled:

Prfx: [3556425:TName] (file:503): Prints the name of the thread.
Prfx: [3556425:QName] (file:511): Prints the name of the task queue.
Prfx: [3556425:TName] (file:518): Prints the name of the thread again.

Bug: webrtc:500769400
Change-Id: I166f9e5924e2aa9bd8fc1d516ebc4aa1108e92e7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/461540
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47386}