JsonProcessorExclusionStrategy, JsonSerializerProcessor,
JsonSerializerTopography

removes unnecessary serialize/deserialize-bounces

by not doing a serialization for every hasUnsavedChanges() call

Adds methods for reading and filtering output and processor classes.

Adds 'final' keyword in some method signatures in PedestrianLastPositionProcessor.java and Processor.java

Other log file classes and even the processors do not have any logic about the separator sign inside themselves.

Now the file stream is only opened for the write() method.