[COOK-1116] Make it possible to use other SCMs than git.

providers/default.rb

@@ -78,6 +78,7 @@ action :deploy do
   end
 
   @deploy_resource = send(new_resource.strategy.to_sym, new_resource.name) do
+    scm_provider new_resource.scm_provider
     revision new_resource.revision
     repository new_resource.repository
     user new_resource.owner

resources/default.rb

@@ -36,6 +36,7 @@ attribute :path, :kind_of => String
 attribute :owner, :kind_of => String
 attribute :group, :kind_of => String
 attribute :strategy, :kind_of => [String, Symbol], :default => :deploy_revision
+attribute :scm_provider, :kind_of => Class
 attribute :revision, :kind_of => String
 attribute :repository, :kind_of => String
 attribute :environment, :kind_of => Hash, :default => {}