move parentchain pallet #771

# to view logs

Job	Run time
Cancel Previous Runs	4s
cargo-toml-fmt	7s
Cargo Zepter	1m 1s
Rust check cargo build --release	2m 43s
license-check	4m 14s
Rust check cargo build --release --features dot	2m 44s
Rust check cargo build --release --features ksm	2m 53s
Rust check cargo test --all --features runtime-benchmarks	3m 11s
Rust check cargo test --all --features dot	2m 45s
Rust check cargo test --all --features ksm	2m 51s
Rust check cargo +nightly fmt --all -- --check	26s
Rust check cargo clippy -- -D warnings	1m 47s
	24m 46s

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