accept any new sidechain block from authorized enclave for shard (#236) #655

Job	Run time
Cancel Previous Runs	3s
license-check	53s
cargo-toml-fmt	14s
Rust check cargo build --release	1m 4s
Rust check cargo build --release --features dot	1m 12s
Rust check cargo build --release --features ksm	1m 6s
Rust check cargo test --all --features runtime-benchmarks	2m 0s
Rust check cargo test --all --features dot	1m 55s
Rust check cargo test --all --features ksm	1m 48s
Rust check cargo fmt --all -- --check	49s
Rust check cargo clippy -- -D warnings	58s
	12m 2s

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