DataSeries (htsjdk 2.16.1 API)

```
@Target(FIELD)
@Retention(RUNTIME)
public @interface DataSeries
```
An annotation to denote a data series field in a java class. Some data can be represented as a set of column (data series) where each column is characterized by it's intention (EncodingKey for CRAM) and it's data type, like Integeror String. Annotating fields in a class with this annotation allows for automated discovery of such column (data series) and attaching specific codec to serialise/deserialize data.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  EncodingKey key
  One of the pre-defined CRAM data series names
  
  DataSeriesType type
  Data type of the series.

- Element Detail
  - key
```
EncodingKey key
```
    One of the pre-defined CRAM data series names
    
    Returns:
    
    CRAM data series name (key)
- - type
```
DataSeriesType type
```
    Data type of the series.
    
    Returns:
    
    data type of the series