Allowing more generic monitor configuration

ddmonitor.diff

diff --git a/providers/ddmonitor.rb b/providers/ddmonitor.rb
index 1616a7a..70bee54 100644
--- a/providers/ddmonitor.rb
+++ b/providers/ddmonitor.rb
@@ -11,6 +11,7 @@ action :add do
     owner "dd-agent"
     mode 00400
     notifies :restart, resources(:service => "datadog-agent")
+    variables :config => new_resource.config, :credentials => new_resource.credentials
   end
 end
 
diff --git a/resources/ddmonitor.rb b/resources/ddmonitor.rb
index 6e67d01..2ba8576 100644
--- a/resources/ddmonitor.rb
+++ b/resources/ddmonitor.rb
@@ -4,3 +4,5 @@ actions :add, :remove
 default_action :add if defined?(default_action)
 
 attribute :name, :kind_of => String, :name_attribute => true
+attribute :credentials, :kind_of => Hash, :required => false
+attribute :config, :kind_of => Hash, :required => false