Sokol v0 (#2228)

* handle chain flag in integration

* handle chain flag in integration

* handle chain flag in integration

* save

* save

* merge devel

* save

* noopWriter - one is enough

* chain spec parser

* chain spec parser

* embed

* embed

* embed

* embed

* embed

* embed

* embed

* clean

* clean

* correct alloc after reset state

* correct alloc after reset state

* correct alloc after reset state

* integration reset state now does re-apply genesis and chainConfig

* eips summary

* eips summary

* eips summary