Create a queue to get input with a text message

[giovannitranquillini]

Now we use the command /search this way: /search titleofthefilm. The idea is to use the command and then get the input text by a normal message

[giovannitranquillini]

2 options:

• use a dictonary { user_id : value } locally
• create a new field on the DB (best one)

N.B. clear the state of the new field if the user use another command