[Client] Enhance ease of configuration by displaying some small info in connection window

[doriancransac]

I suggest that we add, as a simple comment, within the connection window itself, in case of selected mode = Agent, the options that need to be added to the command line of the target program.

Same thing for JMX.

Same thing for jstack (command line example).

-- I know this is type of info belongs primarily to the wiki documentation, but just see it as sort of a local 'cache', I know I would love this as a new user, as this is one of the main "entry barriers" --

We just need to not forget to maintain that, I'm going to add it to the Release Check list I'm working on.