Adding watch option using dmon #5306

Job	Run time
Update LFS data cache	8s
external-build	1m 38s
android (armeabi-v7a)	1m 36s
android (arm64-v8a)	1m 35s
webassembly	1m 30s
android (x86)	1m 43s
android (x86_64)	1m 45s
macos (commit, no-bundle)	8m 6s
macos_arm (commit, no-bundle)	4m 40s
macos_arm (v9.3.0, no-bundle)	3m 41s
macos (v9.3.0, no-bundle)	8m 23s
macos_arm (v9.2.6, no-bundle)	3m 43s
macos_arm (commit, bundle)	5m 32s
macos (v9.2.6, no-bundle)	7m 53s
macos (commit, bundle)	14m 47s
linux (commit, standard)	4m 44s
python-packaging (ubuntu)	2m 55s
linux (v9.3.0, standard)	5m 0s
windows (commit)	3m 37s
python-packaging (windows)	3m 50s
linux (v9.2.6, standard)	4m 37s
windows (v9.3.0)	3m 25s
python-packaging (macos)	4m 2s
linux (v9.1.0, standard)	4m 34s
windows (v9.2.6)	3m 29s
linux (v9.0.0, standard)	3m 35s
linux (headless, commit, raytracing, optional-deps, no-exclude-deprecated, egl)	4m 59s
linux (exclude_deprecated, commit, raytracing, optional-deps, exclude-deprecated, no-egl)	5m 16s
coverage	5m 11s
sanitizer (address)	6m 24s
linux (no_optional_deps, commit, no-raytracing, no-optional-deps, no-exclude-deprecated, no-egl)	3m 8s
sanitizer (thread)	21m 22s
sanitizer (undefined)	4m 37s
static-analysis	3m 43s
	2h 45m 8s

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