## Description 

Add coinType to BalanceChange, so we know the coin type of the balance
that was changed (rhymes)
<img width="1509" alt="Screenshot 2023-11-08 at 10 08 12 AM"
src="https://github.com/MystenLabs/sui/assets/127570466/980c6d6e-2113-4d05-bb2d-d838f918450a">



## Test Plan 

manual verification, updated examples
---
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### Type of Change (Check all that apply)

- [ ] protocol change
- [ ] user-visible impact
- [ ] breaking change for a client SDKs
- [ ] breaking change for FNs (FN binary must upgrade)
- [ ] breaking change for validators or node operators (must upgrade
binaries)
- [ ] breaking change for on-chain data layout
- [ ] necessitate either a data wipe or data migration

### Release notes