…e method. This way the metadata parsing for Sportec can be shared between the event- and trackingdata Deserializers

…ossible and only convert string attributes to float when constructing a Frame. When only_alive or sample_rate are set this will prevent lots of unnecessary type convertions

…vent vs tracking data. Therefore, Provider alone cannot be used to identify a CoordinateSystem. Use DatasetType to determine correct CoordinateSystem. Also refactor construction of DatasetTransformer into DatasetTransformerBuilder, and use it from both TrackingDataDeserializer as EventDataDeserializer.

… in input data

…ormatting improvement