migrate contract staking storage into trie

### What would you like to be added

1 - migrate the latest contract staking storage from indexer to trie
2 - indexer support historical storage

### Why is this needed

### How important you think this is for IoTeX
- [] must have
- [x] should have
- [] nice to have

### Additional information
Let us know any background or context that would help us better understand the request (for example the particular use-case that prompted this request)