TxState Query and X-Shard msg query

[qiluge]

Describe the solution you would like

In the sharding enviroment, each tx has a txState stored at state store. The txState contains many usful info of corresponding tx, such as tx x-shard msg, tx locked contract and keys. But there are no approch to display this info to developer. So, there need some method to get txState info. And, this will be convenience to debug some x-shard contract invoke. The method should be RPC, REST, WS, and Ontology-CLI will be much better.

[xiemylogos]

use same method,can get other shard chainconfig from shard parent ledger.

[qiluge]

X-shard msg is not only exist in tx state, but also exist in state store.

[xiemylogos]

get other shard chainconfig from shard parent ledger #1037