[PATCH v2] procd: add info json output

[Florian Eckert]

Hi Petr,

>> By adding the extra command `info` it is now possible to retrieve all
>> relevant data from a procd started service directly via the init 
>> script.
> 
> whats the use case, how is this useful?

As already mentioned, it is a improvement to get the information of the 
procd service objects faster.
Until now, you always had to enter the whole string with valid json.
I just don't want to type so much.
And It's always easy to make a typo.

So I thought why not give the procd an extra command for this task.

>> Until now, you have to query the ubus with the command:
>> ubus call service list '{"name":"<xxx>","verbose":true}'
>> 
>> With this change, the init script is now used with the command:
>> /etc/init.d/<xxx> info
> 
> I find the `info` name ambiguous and misleading.

I am open about that. I can also imagine `json`.
It should just be short.

Best Regards

Florian