Benchmarking tool using cost estimator #796

Job	Run time
Test on ubuntu-latest with basic features	6m 40s
Test on windows-latest with basic features	8m 28s
Bitrot check	2m 35s
Test on macOS-latest with basic features	14m 50s
Test on ubuntu-latest with all features	7m 59s
Build target wasm32-unknown-unknown	1m 28s
Test on windows-latest with all features	10m 35s
Build target wasm32-wasi	1m 19s
Test on macOS-latest with all features	20m 9s
Intra-doc links	1m 16s
Rustfmt	15s
	1h 15m 34s

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