Network constants diversity

[OlivierBBB]

We need a solution to handle network constants for various networks, e.g.

• CHAINID
• BASEFEE
• BLOCK_GAS_LIMIT
• (before decentralization) COINBASE address

as well as for contexts where some of these hard-coded constants make no sense (Ethereum test suite.)

Several solutions are conceivable:

• have several <network-name>-config.lisp files e.g. mainnet-config.lisp, sepolia-config.lisp, reference-tests-config.lisp and maybe adding build commands à la make mainnet-zkevm.bin
• using a single ZKEVM_MODULES list and adding an option to the make zkevm.bin command to include the correct config constants file and producing the associated <network-name>-zkevm.bin file
• not having such files in the project but generating them on the fly (there are only a few such files and they are short) when compiling the zkevm.bin