Handle activation of simultaneous rules during the same round

[pgambier]

The rules are evaluated sequentially. If two rules are evaluated to "true" during the same round, the second one will potentially be evaluated on an inconsistant network state (because the first action will be taken). In the majority of the cases, this behaviour will cause no harm because there is no impact of action 1 on rule 2.

To avoid potential bugs, the evaluation of the rules and application of the actions should be done differently :

• First, evaluate all the rules but apply none of the actions
• Then, apply all the actions associated with the rules evaluated to "true"