chore: add logo #644

Job	Run time
Build & test (stable, ubuntu-latest)	1m 57s
Build & test (stable, macos-latest)	1m 28s
Build & test (stable, windows-latest)	4m 25s
Build & test (nightly, ubuntu-latest)	1m 40s
Build & test (nightly, macos-latest)	1m 53s
Build & test (nightly, windows-latest)	3m 35s
Clippy lint checks	22s
Test coverage checks	1m 40s
Test with external dependencies	1m 41s
Build with each feature combination	1m 15s
Machete dependencies checks	8s
Minimal dependency versions build	24s
Code formatting checks	18s
	20m 46s

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