FilterBuilder properties overview
| fields | Required. An array of objects with fields data | 
| options | Required. An object with field options or a function that receives field id and returns options | 
| type | Optional. Defines the type of the FilterBuilder presentation | 
| value | Optional. An object with filtering rules | 
FilterBuilder actions overview
| add-group | Fires when adding a nested group with a filtering rule in it | 
| add-rule | Fires when adding a filtering rule | 
| onChange | Fires when changes are made and applied via the user interface | 
| change-rule | Fires when changing a filtering rule | 
| delete-rule | Fires when deleting a filtering rule | 
| edit-rule | Fires when opening the filter editor form | 
| toggle-glue | Fires when toggling the filtering logic | 
| update-rule | Fires when finalizing changes made to a filtering rule | 
FilterBuilder methods overview
| api.on() | Allows attaching a handler to the inner events | 
| api.exec() | Allows triggering the FilterBuilder actions | 
| api.getReactiveState() | Gets the state object that stores current values of most FilterBuilder properties | 
| api.getState() | Gets the state object that stores current values of most FilterBuilder properties | 
| api.getValue() | Gets the filter configuration object | 
| api.intercept() | Allows intercepting and blocking/modifying actions | 
| api.setNext() | Allows adding some action into the Event Bus order |