Fix: Returning error if received UnknownTopicOrPartition from readPartitions

[arxon31]

First suggestion to fix issue #1314 with no rebalance after consumer in consumer group receives empty assignment

#1314

Cause of the issue:

1. assignTopicToPartition ignores error UnknownTopicOrPartition
2. Topic in Kafka creates after p.1
3. partitionWatcher receives num of partition from created topic and fall through in loop
4. If partitions will never be added to a topic, the group will never rebalance
5. Consumers never consume their messages

Solution:
assignTopicToPartition should fail with error if receives UnknownTopicOrPartition and start next generation.