fsh api list -f not supported

the `wsk` cli supports a `-f` parameter on `api list`:

```
> wsk api list -h
list APIs
Usage:
  wsk api list [[BASE_PATH | API_NAME] [API_PATH [API_VERB]] [flags]

Flags:
  -f, --full          display full description of each API
```

which is not recognized by the shell

```
> fsh api list /club -f
Unsupported optional parameter f
```