Support limiting the allowed base URLs for external data requests #391

Job	Run time
cargo-bundle-license	1m 39s
codegen-clean	46s
black-lint	19s
rust-fmt-clippy	59s
vl-convert-python-tests (ubuntu-latest, 3.10, bash -l {0})	9m 48s
vl-convert-rs-tests (ubuntu-latest)	20m 19s
vl-convert-python-tests (windows-2022, 3.10, pwsh)	24m 54s
vl-convert-rs-tests (windows-2022)	33m 46s
vl-convert-python-tests (macos-11, 3.10, bash -l {0})	12m 41s
vl-convert-rs-tests (macos-11)	27m 49s
	2h 13m 0s

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