icingaweb2: Provide backend_group defined type

manifests/profiles/icingaweb2/backend_group.pp

+define icinga2_testing::profiles::icingaweb2::backend_group (
+  $resource,
+  $user_backend = 'icingaweb2',
+  $group_class = 'group',
+  $group_name_attribute = 'cn',
+  $group_member_attribute = 'member',
+  $group_filter = undef,
+  $base_dn = undef,
+){
+  include ::icingaweb2
+
+  ensure_resource('file', "${::icingaweb2::config_dir}/groups.ini", {
+    ensure => file,
+      owner  => $::icingaweb2::config_owner,
+      group  => $::icingaweb2::config_group,
+    }
+  )
+
+  Ini_Setting {
+    ensure  => present,
+    section => $name,
+    require => File["${::icingaweb2::config_dir}/groups.ini"],
+    path    => "${::icingaweb2::config_dir}/groups.ini",
+  }
+
+  ini_setting {
+    "icingaweb2 group ${name} resource":
+      ensure  => $resource ? { undef => absent, default => present },
+      setting => 'resource',
+      value   => $resource;
+    "icingaweb2 group ${name} user_backend":
+      ensure  => $user_backend ? { undef => absent, default => present },
+      setting => 'user_backend',
+      value   => $user_backend;
+    "icingaweb2 group ${name} group_class":
+      ensure  => $group_class ? { undef => absent, default => present },
+      setting => 'group_class',
+      value   => $group_class;
+    "icingaweb2 group ${name} group_name_attribute":
+      ensure  => $group_name_attribute ? { undef => absent, default => present },
+      setting => 'group_name_attribute',
+      value   => $group_name_attribute;
+    "icingaweb2 group ${name} group_member_attribute":
+      ensure  => $group_member_attribute ? { undef => absent, default => present },
+      setting => 'group_member_attribute',
+      value   => $group_member_attribute;
+    "icingaweb2 group ${name} group_filter":
+      ensure  => $group_filter ? { undef => absent, default => present },
+      setting => 'group_filter',
+      value   => $group_filter;
+    "icingaweb2 group ${name} base_dn":
+      ensure  => $base_dn ? { undef => absent, default => present },
+      setting => 'base_dn',
+      value   => $base_dn;
+  }
+}