contracts: add `seal_code_hash` and `seal_own_code_hash` to API (#10933)

* `seal_origin` + tests added

* `seal_origin` benchmark added

* `seal_code_hash` + tests added

* `seal_code_hash` benchmark added

* `seal_own_code_hash` + tests added

* `seal_own_code_hash` benchmark added

* fmt lil fix

* akward accident bug fix

* Apply suggestions from code review

Co-authored-by: Alexander Theißen <[email protected]>

* Apply suggestions from code review

Co-authored-by: Alexander Theißen <[email protected]>

* benchmark fix

* `WasmModule::getter()` to take `module_name` arg

* test enhanced

* fixes based on review feedback

* Apply suggestions from code review

Co-authored-by: Alexander Theißen <[email protected]>

* Hash left as const to return a ref to it from mock

* HASH test val to local const in mock

* Apply suggestions from code review

Co-authored-by: Alexander Theißen <[email protected]>

* fixes to benchmarks according to review feedback

* cargo run --quiet --profile=production  --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* removed `seal_origin` from API

Co-authored-by: Alexander Theißen <[email protected]>
Co-authored-by: Parity Bot <[email protected]>