use own filter_nodes function

it is removed in fuel9 puppet lib

Change-Id: I48fb0887224b6348bef5319341afd4db83738578

deployment_scripts/puppet/modules/scaleio_fuel/lib/puppet/parser/functions/filter_nodes.rb

@@ -0,0 +1,9 @@
+module Puppet::Parser::Functions
+  newfunction(:filter_nodes, :type => :rvalue) do |args|
+    name = args[1]
+    value  = args[2]
+    args[0].select do |it|
+      it[name] == value
+    end
+  end
+end