Support converting between `anyhow::Error` and `eyre::Report` automatically with `?` #457

Job	Run time
Test Suite	1m 54s
Check (stable)	11s
Test Suite (--no-default-features)	1m 53s
Test Suite (--no-default-features --features track-caller)	1m 56s
Test Suite (--no-default-features --features auto-install)	1m 57s
Rustfmt (stable)	9s
Miri	50s
Clippy (stable)	27s
Test Suite (stable)	2s
Test Suite (ubuntu-latest)	28s
Test Suite (stable, --no-default-features)	1s
Test Suite (windows-latest)	28s
Test Suite (stable, --no-default-features --features track-caller)	1s
Test Suite (macOS-latest)	28s
Test Suite (stable, --no-default-features --features auto-install)	1s
Test Suite (stable, --features pyo3)	1s
Test Suite (stable, --all-features)	1s
Test Suite (beta)	33s
Test Suite (beta, --no-default-features)	34s
Test Suite (beta, --no-default-features --features track-caller)	34s
Test Suite (beta, --no-default-features --features auto-install)	32s
Test Suite (beta, --features pyo3)	34s
Test Suite (beta, --all-features)	37s
Test Suite (nightly)	36s
Test Suite (nightly, --no-default-features)	2s
Test Suite (nightly, --no-default-features --features track-caller)	20s
Test Suite (nightly, --no-default-features --features auto-install)	16s
Test Suite (nightly, --features pyo3)	35s
Test Suite (nightly, --all-features)	35s
	16m 36s

Provide feedback