Move Storage Parser from Bridge Pallet (#793)

* Move storage proof checker to runtime primtives

* Add method for parsing storage proofs

* Use finality-verifier pallet in runtime-common

* Get bridge pallet compiling again

* Use storage prover from bp-runtime in a few more places

* Don't leak `std` items from proof helper into `no-std` builds

* Fix benchmarking compilation

* Remove unused import in fuzzer

bridges/primitives/runtime/src/lib.rs

@@ -24,8 +24,13 @@ use sp_io::hashing::blake2_256;
 use sp_std::convert::TryFrom;
 
 pub use chain::{BlockNumberOf, Chain, HashOf, HasherOf, HeaderOf};
+pub use storage_proof::StorageProofChecker;
+
+#[cfg(feature = "std")]
+pub use storage_proof::craft_valid_storage_proof;
 
 mod chain;
+mod storage_proof;
 
 /// Use this when something must be shared among all instances.
 pub const NO_INSTANCE_ID: InstanceId = [0, 0, 0, 0];