Handle timeouts

[vamsipavanmahesh]

We are facing timeouts when fetching media. Basically, FB is not responding to us even after 30 seconds, and Heroku kills the thread as it's long-running.

client = InstagramBasicDisplay::Client.new(auth_token: user.instagram_token)
response = client.media_feed

Can I send a PR to add this functionality? If so, do you prefer timeout to be an environment variable or an optional param?