Closes: #11415
## Description
- Create `FeeMarket` interface, and move exiting static fee logic into `StaticFeeMarket` implementation.
- Merged `MempoolFeeMiddleware` and `TxPriorityMiddleware` into `DeductFeeMiddleware`, so we can deduct fee based on the check result.
- ~~Support extension options in `Tx.AuthInfo`, so feemarket module can extend the tx fields.~~ Keep in TxBody
- No Ledger support in v0.46
---
### Author Checklist
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I have...
- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
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- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
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### Reviewers Checklist
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- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
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- [ ] manually tested (if applicable)
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