nano contract events tests

[r4mmer]

Motivation

The NC_EVENTS scenario of the fullnode simulation should be used to test how the daemon treats nano contract transactions.

We should also include the zod schemas to solve the issue raised on #266

Acceptance Criteria

• Create integration tests with the fullnode simulation scenario NC_EVENTS.
• Create fullnode event schemas with zod

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged
• Make sure either the unit tests and/or the QA tests are capable of testing the new features
• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.