add config clearDataOnError etc

[klis87]

I am not sure this is actually necessary, we have resetRequests action now. But if you think this might be useful, please provide use cases

[klis87]

I think this is redundant to implement:

• on request data should not be cleared, as people could show old data when a new one is being fetched, if not a spinner could be shown
• on success data is updated anyway
• on error data should be cleared as error is set
• on abort - this one is the most tricky, we dont clear data for this one, maybe we should or maybe it should be configurable, but I think this doesnt really matter, requests usually will be aborted due to new request fired with takeLatest: true or resetRequests action usually, so data will be updated anyway