feat: optionally unblinded advice columns #763

Job	Run time
Bitrot check	9m 25s
Rustfmt	21s
Intra-doc links	6m 22s
Build target wasm32-unknown-unknown	5m 40s
Test on ubuntu-latest with basic features	14m 9s
Build target wasm32-wasi	5m 32s
Test on windows-latest with basic features	22m 7s
Test on macOS-latest with basic features	16m 27s
Test on ubuntu-latest with all features	19m 49s
Test on windows-latest with all features	20m 22s
Test on macOS-latest with all features	13m 26s
	2h 13m 40s

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