Testing framework: add support for C_CONTRACT and similar

E. Rivasrequested to merge
er433/test/get_contract+entrypoint into dev

type:added

For LIGO developers

Currently, Tezos.get_entrypoint_opt and similar are not supported in the testing framework. I don't think there's currently a reason on why to limit it.

This MR implements them.

Changelog details:

Testing framework: support for Tezos.get_entrypoint_opt, Tezos.get_contract_opt and variants.

Edited by E. Rivas

Merge request reports