ADD educode user login

app/libs/oauth_educoder.rb

@@ -0,0 +1,20 @@
+module OauthEducoder
+  class << self
+    def config
+      educoder_config = {}
+
+      begin
+        config = Rails.application.config_for(:configuration).symbolize_keys!
+        educoder_config = config[:oauth][:educoder].symbolize_keys!
+        raise 'oauth educoder config missing' if educoder_config.blank?
+      rescue => ex
+        raise ex if Rails.env.production?
+
+        puts %Q{\033[33m [warning] educoder config or configuration.yml missing,
+                 please add it or execute 'cp config/configuration.yml.example config/configuration.yml' \033[0m}
+        educoder_config = {}
+      end
+      educoder_config
+    end
+  end
+end