Fully implement SelfDestruct

[franck44]

At the moment some functions resulting in changes on the world state, are partially implemented.
For example the effect of SelfDestruct is that at sone point the account should be removed from the world state, but we do not implement this change (or some changes that have to occur at the end of the transactions like refund etc).

Implement SelfDestruct

First thing is to provide more precise implementations for these functions (e.g. starting for the Yellow paper for SelfDestruct).
An example is to add the account to the selfDestructed accounts in the substate.

Test SelfDestruct

Modification to the worldstate do not seem to be tested using the GeneralTests so we may have to add more tests, at the level of transactions.