ConfigGroups (Flink : 2.0-SNAPSHOT API)

```
@Target(TYPE)
@Retention(RUNTIME)
@Internal
public @interface ConfigGroups
```
Annotation used on classes containing config options that enables the separation of options into different tables based on key prefixes. A config option is assigned to a ConfigGroup if the option key matches the group prefix. If a key matches multiple prefixes the longest matching prefix takes priority. An option is never assigned to multiple groups. Options that don't match any group are implicitly added to a default group.

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  ConfigGroup[] groups

- Element Detail
  - groups
```
ConfigGroup[] groups
```
    Default:
    
    {}