Split the end-to-end test file.

[MathieuDutSik]

Motivation

The end-to-end test file has grown larger and it prevents using the remote_net for shared set of validators.

Proposal

The following was done:

• All the tests that take a LineraNetConfig are moved into a linera_net_tests.rs.
• The remaining tests are in a local_net_tests.rs.
• The remote_net and kubernetes have been added to the Ethereum end-to-end test.
• The tests for the matching_engine are enabled for other storages.
• This led to simplifying many #[cfg(any... statements away.

Test Plan

The CI.

Release Plan

Not relevant.

Links

• reviewer checklist

[ma2bd]

Thanks