Expose `EvmFactory` as a generic parameter of `ScrollEvmConfig`

[lightsing]

Describe the feature

1. Expose EvmFactory from ScrollBlockExecutorFactory as a generic parameter of ScrollEvmConfig
2. Support arbitrary E: EvmFactory of ScrollBlockExecutorFactory<R, Spec, E> impls BlockExecutorFactory (? not sure
3. Allow construct ScrollEvm outside scroll-alloy-evm

X-Question: Override the precompiles for ScrollEvmConfig

Y-Question: Create a custom ScrollEvmFactory with custom precompiles. Override the EvmFactory in ScrollEvmConfig.

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Or do we have a better solution here?

Additional context

No response