Client-side computation of party onboarding transactions and hash #17
Description
Motivation
Remove the need to trust a participant node and validator app to prepare the right topology transaction
Background
The kind of code to port is this one: https://github.com/hyperledger-labs/splice-wallet-kernel/blob/8d05dd8e30e4b9e8545aa5db8bf11fa546ca9794/clients/remote/src/ledger/party-allocation-service.ts#L111-L134
Steps to get there
- implement topology tx hashing client side
- implement topology tx combination client side
- implement topology tx generation client side