Write data computed in strategy layer with data processor

The strategy layer is able to change the locomotion behavior during the simulation e.g. by setting new targets.

These changes can not be observed with data processors directly.

To capture such changes, the data processor StrategyDataProcessor can be used.

The StrategyDataProcessor receives changes from the strategy model directly.

For that purpose, the IStrategyModel was added to the simulation state which is read by the StrategyDataProcessor.