* accounts/abi/bind: fix bounded contracts and sim backend for 1559

* accounts/abi/bind, ethclient: don't rely on chain config for gas prices

* all: enable London for all internal tests

* les: get receipt type info in les tests

* les: fix weird test
Co-authored-by: NMartin Holst Swende <martin@swende.se>

This commit splits the eth package, separating the handling of eth and snap protocols. It also includes the capability to run snap sync (https://github.com/ethereum/devp2p/blob/master/caps/snap.md) , but does not enable it by default. 
Co-authored-by: NMarius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: NMartin Holst Swende <martin@swende.se>