evm: move map -> array for opcodes/gas

[jochem-brouwer]

This PR changes the internal Opcodes / Dynamic Gas type from Map -> Array. Array lookups seem faster than Map.

Also super small code cleanup, such as removing unused arguments (_common)

[holgerd77]

I add blocked/do-not-merge labels so that this does not get accidentally merged.

For context see #work channel discussion.

[jochem-brouwer]

Ah right, sorry, should have done that also. Thanks for adding :smile: :+1:

[jochem-brouwer]

Have also marked as draft!

[holgerd77]

I think we might want to close here and not act upon this?

[jochem-brouwer]

Yep!