* Initial code to use Zerokit 0.9 + disable parallel feature
* Support IdSecret for user identity secret hash
* Fix clippy + bench
* Use PmTreeConfig builder
* Improve prover_bench perf
* Fix prover_bench 2nd assert
* Fix prover_bench 2nd assert 2
* Can now enable trace for bench prover_bench
* Use anyhow for error handling (+ error context) in prover_cli (#42)
* Use anyhow for error handling (+ error context) in prover_cli
* Cargo fmt pass
* Feature/feature/init user db ser de 2 (#45)
* Add user db serializer && deserializer init & re-use
* Move all code related to smart contracts into lib smart_contract
* Can start the prover with mocked smart contract
* Add KarmaTier integration
* Filter & validate initial tier limits
* Add initial code for user db (user reg + tx counter + tier info)
* Switch to scc hashmap (+ updated benchmark)
* Add KSC into UserDB
* Start user db service in prover main
* Separate between user db service & user db
* Add set tier limits grpc endpoint
* Set tier limits unit test
* Use derive_more