[TASK] Add default xdebug directives

attributes/default.rb

-default['xdebug']['directives'] = {}
+default['xdebug']['directives'] = {
+	:remote_enable => 1,
+	:remote_connect_back => 1,
+	:remote_port => 9000,
+	:remote_handler => 'dbgp',
+	:profiler_enable => 0,
+	:profiler_enable_trigger => 1
+}