changes to improve event system based on new web ui devs requests

[douglascamata]

• added encounter_id, latitude, longitude and pokemon_id to pokemon caught, vanished and appeared events.
• data structure of events broadcasted by the bots now is the following:

{
    "event": event_name,
    "account": bot_account,
    "data": event_parameters
}

• position update event being sent at debug level for each step in the StepWalker
• get_player_info remote command now includes player and inventory info

@brantje: use this PR to keep working on the web ui and we discuss further modifications here.

[elicwhite]

Did this mean to be committed?

[douglascamata]

I'll remove in future commit, sorry :P

[Jasperrr91]

I can haz merge?

[brantje]

👍