Added a example: crane moving a load #236

Job	Run time
Build and run tests (ubuntu-latest, 3.8)	4m 30s
Build and run tests (ubuntu-latest, 3.9)	4m 5s
Build and run tests (ubuntu-latest, 3.10)	4m 5s
Build and run tests (ubuntu-latest, 3.11)	4m 7s
Build and run tests (ubuntu-latest, 3.12)	4m 31s
Build and run tests (macos-13, 3.8)	8m 1s
Build and run tests (macos-13, 3.9)	7m 36s
Build and run tests (macos-13, 3.10)	7m 38s
Build and run tests (macos-13, 3.11)	5m 28s
Build and run tests (macos-13, 3.12)	6m 25s
Build and run tests (macos-latest, 3.8)	3m 52s
Build and run tests (macos-latest, 3.9)	3m 47s
Build and run tests (macos-latest, 3.10)	5m 9s
Build and run tests (macos-latest, 3.11)	3m 15s
Build and run tests (macos-latest, 3.12)	3m 52s
Build and run tests (windows-latest, 3.8)	7m 40s
Build and run tests (windows-latest, 3.9)	9m 39s
Build and run tests (windows-latest, 3.10)	8m 23s
Build and run tests (windows-latest, 3.11)	7m 50s
Build and run tests (windows-latest, 3.12)	8m 41s
	1h 58m 34s

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