[llvm] [LLD][COFF] Add support for `--time-trace` (PR #68236)

[Alexandre Ganea via llvm-commits]

aganea wrote:

Also it is quite interesting to see the difference between "hot" and "cold".
"Cold" case here is actually ultra-cold, since I've emptied all working-sets/standby lists. So that's 23 sec:

![image](https://github.com/llvm/llvm-project/assets/37383324/91527936-17af-419c-9ad3-8454453cb95b)

Same link, "Hot" case after several runs, now 8 sec:

![image](https://github.com/llvm/llvm-project/assets/37383324/e0fbf71f-6f5a-4b09-b3f5-cf1382bc71ee)



https://github.com/llvm/llvm-project/pull/68236