* test: WIP mocking the grpc server for testing the sending of the client information
* WIP: Test_SystemMetaDataFromClient with mocks, todo:
* fix: failing meta data test
* test: add system meta expectation in management client test
* fix: removing deprecated register function, replacing with new one
* fix: removing deprecated register function from mockclient interface impl
* fix: fixing interface declaration
* chore: remove unused commented code
Co-authored-by: braginini <bangvalo@gmail.com>
