chore: add descriptions to crates (#616) #901

Job	Run time
cargo clippy	2m 21s
Rustfmt	13s
cargo test (gadget-networking)	1m 48s
cargo test (gadget-executor)	1m 45s
cargo test (incredible-squaring-blueprint)	1s
cargo test (incredible-squaring-blueprint-eigenlayer)	1s
cargo test (gadget-utils-tangle)	1m 47s
cargo test (gadget-blueprint-proc-macro)	1m 41s
cargo test (gadget-blueprint-proc-macro-core)	1m 35s
cargo test (gadget-context-derive)	1m 39s
cargo test (gadget-client-eigenlayer)	1m 36s
cargo test (gadget-client-evm)	1m 35s
cargo test (gadget-client-tangle)	1m 34s
cargo test (gadget-crypto-sp-core)	1m 32s
cargo test (gadget-crypto-ed25519)	1m 34s
cargo test (gadget-crypto-bls)	1m 20s
cargo test (gadget-crypto-k256)	1m 31s
cargo test (gadget-crypto-sr25519)	55s
cargo test (gadget-event-listeners-core)	1m 32s
cargo test (gadget-event-listeners-cronjob)	1s
cargo test (gadget-blueprint-serde)	1m 35s
cargo test (gadget-config)	1m 35s
cargo test (gadget-keystore)	1s
cargo test (gadget-std)	1s
	29m 13s

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