feat: add Operator.id property #6667

Job	Run time
debug	1s
pick_server_suffix	1s
Build linux1 wheel	21s
Style Check	53s
retro 232	0s
retro 242	0s
retro 241	0s
retro 222	0s
retro 251	0s
retro 231	0s
docs	0s
examples	0s
PyDPF-Post	0s
tests / Setup	1s
tests_any / Setup	1s
Run examples on Docker / Setup	1s
Build and Test on Docker / Build and Test On Docker (3.9, ubuntu-latest)	1m 10s
upload-development-docs	0s
tests_any / Tests (3.9, windows-latest)	51s
tests_any / Tests (3.9, ubuntu-latest)	1m 0s
Run examples on Docker / Run Examples (3.9, ubuntu-latest)	48s
tests / Tests (3.9, windows-latest)	52s
tests / Tests (3.9, ubuntu-latest)	59s
	6m 59s

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