setting accessory category from old style platform plugin
### Current Situation

is there a way for an old style platform plugin to set the accessory category of individual accessories?

if not... would a patch still be accepted?

### Logs

```markdown
n/a
```


### Configuration

```json
n/a
```


### Environment

- OS:
- Software:
- Node:
- npm:


### Process Supervisor

not applicable

### Additional Context

even if it is only cosmetic, I think it would be nice if one could use something better matching a device then the current default OTHER