Explore gix APIs, experiment with gix-blame API #4797

Job	Run time
pure-rust-build	2m 2s
test-fast (windows-latest)	2m 33s
test-fast (macos-latest)	2m 32s
test	14m 21s
test-fast (ubuntu-latest)	2m 47s
lint	1m 13s
test-32bit (armv7-linux-androideabi)	1m 10s
WebAssembly (wasm32-unknown-unknown)	1m 0s
WebAssembly (wasm32-wasi)	56s
cargo-deny (advisories)	26s
cargo-deny (bans licenses sources)	29s
check-packetline (ubuntu-latest)	7s
Tests pass	1s
	29m 37s

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