Upcoming changes to Single Asset Vault and Lending Protocol

[Patel-Raj11]

Keep an eye on below mentioned XLS changes and their corresponding rippled PR:

1. adds VaultDepositBlock flag XRPL-Standards#469
2. Add Data field to VaultDelete  XRPL-Standards#470
3. Add PermissionedDomain to LoanBroker XRPL-Standards#484

[Tapanito]

@Patel-Raj11 , there's an additional one to look out for (part of #469): XRPLF/rippled#6383. This adds a new tfVaultDonate flag.

I'll keep you updated here for other new features.