Support index.mapping.total_fields.limit elasticsearch index setting

[emoshaya]

Is your feature request related to a problem? Please describe.
Currently, the elasticstack_elasticsearch_index resource doesn't support native index.mapping.total_fields.limit settings and therefore we've resorted to using the deprecated settings block.

Describe the resource you would like to have implemented.
Similar to analysis_normalizer analysis_analyzer, we'd like a mapping_total_fields_limit attribute

Describe the solution you'd like
Similar to analysis_normalizer analysis_analyzer, we'd like a mapping_total_fields_limit attribute

Describe alternatives you've considered
deprecated settings block.

  settings {
    setting {
      name  = "index.mapping.total_fields.limit"
      value = "2000"
    }