Add Path Validation and Environment Loading to TreeNode Class #3028

Job	Run time
Windows with Python 3.9	50s
Windows with Python 3.10.0	3m 15s
macOS with Python 3.11.1	10m 47s
Experimental checks	15s
Windows with Python 3.11	49s
Build Package (wheel/tarball) for Python 3.8	53s
Windows with Python 3.12.0	2m 31s
Build Package (wheel/tarball) for Python 3.9	51s
Static checks	1m 55s
Build Package (wheel/tarball) for Python 3.10.0	59s
Smokecheck on Linux with Python 3.8	26s
Version task fedora:37	2m 59s
Build Package (wheel/tarball) for Python 3.11	55s
Smokecheck on Linux with Python 3.9	25s
Version task fedora:38	2m 35s
Build Package (wheel/tarball) for Python 3.12.0	1m 5s
Smokecheck on Linux with Python 3.10.0	41s
Smokecheck on Linux with Python 3.11	1m 39s
Smokecheck on Linux with Python 3.12.0	37s
Egg task debian:11.0	19s
Egg task debian:12.4	18s
Egg task fedora:37	56s
Egg task fedora:38	42s
Egg task ubi:8.8	19s
Egg task ubi:9.2	15s
Egg task ubuntu:20.04	22s
Egg task ubuntu:22.04	16s
Build Egg for Python 3.8	11s
Build Egg for Python 3.9	13s
Fedora develop install/uninstall task	2m 25s
Build Egg for Python 3.10.0	14s
Fedora selftests	7m 52s
Podman Egg task	16s
Build Egg for Python 3.11	10s
Podman spawner with 3rd party runner plugin	55s
Build Egg for Python 3.12.0	23s
Version task debian:11.0	26s
Version task debian:12.4	1m 59s
Version task ubi:9.2	22s
Version task ubi:8.8	1m 58s
Version task ubuntu:20.04	26s
Version task ubuntu:22.04	2m 4s
Linux with Python 3.8	8m 29s
Linux with Python 3.9	8m 48s
Linux with Python 3.10.0	9m 50s
Linux with Python 3.11	9m 55s
Linux with Python 3.12.0	8m 55s
	1h 43m 45s

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