[Istanbul] EIP-1884: Trie-size-dependent Opcode Repricing > Price Parameters

[holgerd77]

Part of ethereumjs/ethereumjs-monorepo#501

EIP-1884 introduces price changes for trie-size-dependent opcode to better balance the network along growth, as well as a new opcode SELFBALANCE.

The new price parameters have to be added to the Common library for the Istanbul HF.

Should likely be addressed together with #62 in one combined PR (or at least released).

Update: Since EIP-2200 is still in heavy discussion it might actually be also make sense to handle and release separately.