rename t/10_SetupStorage-Parser/run-parser.t to parse.t
acknowledge PerlCritic warnings for stringy eval
add transform() function

'transform()' uses the raw data structure produced by the config file parser and
improves it by rewriting some data structure, e.g.

  $data = [
    [
       {
         'type' => 'physdisk',
         'name' => 'disk1',
         'opts' => [
         [...]
      {
        'type' => 'md',
        'opts' => [
        [...]

becomes

  $data = {
    'physdisk' => {
      'disk1' => {
        'opts' => [
        [...]
    'md' => [
      {
        'opts' => [
        [...]

The intention is to make it easier to access a specific device's config by
directly addressing the device (category) instead of having to iterate over
all devices.