Calldata V2

[EvgenKor]

To support decentralized relayer architecture the transaction calldata format should be changed to support new fields such as proxy address and prover fee. The following major changes were introduced:

• added TxOperator entity to describe proxy and prover fees and proxy address. TxOperator is a substitution for fee field (libzkbob-rs)
• symmetric encryption scheme was applied for the new memo format only
• adapted create_tx to creating universal transaction calldata for both versions (libzkbob-rs)
• added is_obsolete_pool to the UserAccount initializers to support old memo format (libzkbob-rs, libzkbob-rs-wasm)
• added ExtraItem struct to describe additional user artefacts for the transaction. ExtraItem isn't implemented for now completely: it's a part of input transaction but will not be included in the output calldata (libzkbob-rs)
• skipping transaction with parsing error during local state sync (libzkbob-rs-wasm)

The following libraries versions will produced after the merging of this PR:

• libzkbob-rs 1.4.0
• libzkbob-rs-node 1.2.0
• libzkbob-rs-wasm 1.7.0

New calldata format described here as a draft

libzkbob-rs-wasm library was published as a beta (single-thread, multi-theread) and using in the following chain:

• libzeropool-zkbob v1.4.0
• libzkbob-rs v1.4.0, libzkbob-rs-node v1.2.0, libzkbob-rs-wasm v1.7.0 ---===> you are here <===---
• zkbob-client-js v6.0.0
• zkbob-console v4.0.0 -> deployment

[AllFi]

Looks good to me