build

- F Introduce ApprovalFileLog (currently writing to working directory) #1923

Job	Run time
clang-format-and-update-docs	24s
Windows VS-2019	5m 26s
macOS xcode-15.4	1m 35s
Windows VS-2019 (clangcl)	4m 23s
Linux clang10	2m 4s
macOS xcode-15.4-ninja in-source	2m 2s
Windows VS-latest	4m 59s
Linux clang11	2m 38s
macOS xcode-15.4-ninja out-of-source	1m 26s
Windows VS-latest (clangcl)	6m 51s
Linux clang12	2m 21s
Linux clang14	3m 19s
Linux clang15	2m 16s
Linux gcc9	2m 22s
Linux gcc10	2m 18s
Linux gcc10 unity	1m 36s
Linux gcc10 ninja in-source	2m 19s
Linux gcc10 ninja out-of-source	2m 7s
Linux gcc10 ninja-unity	1m 41s
	52m 7s

Provide feedback