SC: Implement get_call_data, set_call_return_value and get_call_data host functions

[linh2931]

This PR implements the remaining sync call host functions. Basic sync call protocol level functionalities are in place.

Unit test basic_params_return_value_passing shows a complete end to end sync call in WASM code using the host functions in the following steps

1. making a sync call,
2. passing arguments,
3. saving return value,
4. retrieving return value

Resolves #1215

[spoonincode]

afaict we aren't enforcing max_sync_call_depth yet even in this PR. It feels like at least one of these PRs should have that enforcement? Since this one is at least enforcing max_sync_call_data_size now

[linh2931]

afaict we aren't enforcing max_sync_call_depth yet even in this PR. It feels like at least one of these PRs should have that enforcement? Since this one is at least enforcing max_sync_call_data_size now

I plan to enforce max_sync_call_depth after the refactor of apply_context is done (#1261, my next task), since that will change code structure. This PR focuses on the three host functions. I will create a task issue.