add state management to the dumper to ease resumption

[ramSeraph]

state can be serialised to disk and used to skip already handled features

Submitting the PR, to see if there is interest in this feature, given the amount of code changes, I wouldn't mind maintaining it separately if it is too much of a review burden.

TODO:

• [ ] Add tests for the state management code
• [ ] provide support to specify state file in the cli

[ramSeraph]

Existing tests pass, and state management for all modes except the query by geographical extent were used and known to work.

[ramSeraph]

An example of usage is here: https://github.com/ramSeraph/esriscraper/blob/main/esriscraper/scrape.py#L14

[iandees]

Thanks for submitting this. I'm still thinking about if this is something I want to support in the library directly.

[ramSeraph]

I too think a lot of it can be outside the library, but some encapsulation of params for different modes might need to be in the library to support something similar to the cli "start_with" for all modes.

Your call, also not urgent at all :)