Feature: Twitter DM Integration (#451)

An initial version of twitter integration

Co-authored-by: Sojan Jose <sojan@pepalo.com>

config/initializers/twitter.rb

@@ -0,0 +1,8 @@
+$twitter = Twitty::Facade.new do |config|
+  config.consumer_key = ENV.fetch('TWITTER_CONSUMER_KEY', nil)
+  config.consumer_secret = ENV.fetch('TWITTER_CONSUMER_SECRET', nil)
+  config.access_token = ENV.fetch('TWITTER_ACCESS_TOKEN', nil)
+  config.access_token_secret = ENV.fetch('TWITTER_ACCESS_TOKEN_SECRET', nil)
+  config.base_url = 'https://api.twitter.com'
+  config.environment = 'chatwootstaging'
+end