Write a report about tests running against the era-test-node

[mationorato]

Write a report about the testing status against this era-test-node PR.

We should have some clarity on which features are working, which are not and why.

If we found that some failing test is related to a missing RPC method, we add that endpoint here

[jpcenteno]

I wrote a notion document detailing and classifying each of the failing tests

The failing tests can be grouped into these major categories:

• Tests that require a different rich wallet parameter to be passed.
  • This can be easily solved, but we should discuss how to parameterize our test suite first.
• Tests that require interaction with the layer 1, which is currently unsupported by the in-memory node.
• Tests with discrepancies in the expected JSON-RPC response.
• Tests which fail due to unimplemented JSON-RPC methods.

[jpcenteno]

The ticket also required this:

If we found that some failing test is related to a missing RPC method, we add that endpoint matter-labs/era-test-node#21

But that PR has already been merged.