feat: temporary extras

[ARR4N]

Why this should be merged

Registration of extras requires runtime enforcement of payload types. In production, only a single set of types can be registered and any attempts at re-registration will panic (by design). Although this makes production usage safe, it doesn't allow downstream consumers (e.g. data indexers) to use extras from different chains (e.g. coreth and subnet-evm) at the same time.

How this works

1. The libevm/register.AtMostOnce type can now be overridden temporarily.
2. params, core/types, core/vm, and state packages introduce WithTempRegisteredExtras() functions.
3. libevm/temporary.WithRegisteredExtras() provides "atomic" override of all extras.

In all cases, the scope of the override is limited to the life of a single function call.

How this was tested

Relative to numbered list above:

1. Unit test of new and existing functionality.
2. Integration tests of both packages, demonstrating both payload and behavioural override.

[ceyonur]

overall lgtm, just few questions

[ceyonur]

lgtm!