[WIP] EVM transformation

[jangko]

No description provided.

[jangko]

this PR is ready. review please.
summary:

• GST +57, only 2 left from Frontier and Homestead test suite.
• discover an important fact related to long standing stack overflow issue: {.computedGoto.} pragma can eat a lot of stack space. I will transform the switch case EVM into jump table EVM in another PR.
• we are able to sync pass DAO, I will tell the exact number later, right now I still syncing.

[jangko]

The prefix '&' is not a concat operator, it is a strfmt string interpolation shortcut.
The error msg should be appear at transaction tracer, we can easily log it with chronicles at the end of 'executeOpcodes'.
I will add the logging code later when I fix #244