Add option to quote performance in microseconds or nanoseconds #6442

Job	Run time
Linux (gcc, shared)	2m 23s
Windows (shared, x86_64, windows-2022)	7m 5s
Linux (gcc, amalgamation)	4m 6s
Windows (static, x86_64, windows-2022)	4m 9s
Analysis (coverage, gcc, ubuntu-24.04)	31m 59s
Linux (gcc, static)	1m 45s
Windows (amalgamation, x86_64, windows-2022)	7m 25s
Analysis (sanitizer, clang, ubuntu-24.04)	31m 18s
Linux (clang, shared)	2m 10s
Analysis (valgrind, clang, ubuntu-24.04)	44m 20s
Windows (shared, x86, windows-2022)	8m 13s
Analysis (fuzzers, gcc, ubuntu-24.04)	33m 20s
Clang Tidy	1m 0s
macOS (shared, xcode, macos-13)	3m 20s
Analysis (lint, gcc, ubuntu-24.04)	1m 2s
macOS (amalgamation, xcode, macos-13)	4m 46s
Analysis (format, gcc, ubuntu-24.04)	36s
Analysis (limbo, gcc, ubuntu-24.04)	48s
Special (examples, gcc, ubuntu-24.04)	52s
macOS (shared, xcode, macos-14)	2m 18s
macOS (amalgamation, xcode, macos-14)	2m 52s
Special (minimized, gcc, ubuntu-24.04)	37s
Cross (cross-i386, gcc, ubuntu-22.04)	3m 9s
Special (bsi, gcc, ubuntu-24.04)	1m 25s
Cross (cross-arm32, gcc, ubuntu-24.04)	13m 41s
Special (docs, gcc, ubuntu-24.04)	1m 1s
Cross (cross-arm64, gcc, ubuntu-24.04)	11m 55s
Special (no_pcurves, gcc, ubuntu-24.04)	1m 24s
Cross (cross-ppc64, gcc, ubuntu-24.04)	7m 47s
Cross (cross-mips64, gcc, ubuntu-24.04)	9m 3s
Cross (cross-android-arm64, clang, ubuntu-24.04)	1m 8s
Cross (static, gcc, windows-2022, make)	3m 34s
Cross (cross-ios-arm64, xcode, macos-13)	53s
	4h 11m 24s

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