segment metadata query and concise/roaring bitmap

[Egor Ryashin]

Hey,

*Segment Metadata* query doesn't return information about bitmap type
(concise/roaring), I wonder if we would like to add it here:

      "author": {

        "type": "STRING",

        "hasMultipleValues": false,

        "size": 555,

        "cardinality": 2,

        "minValue": "",

        "maxValue": "at123",

        "errorMessage": null,

       * "bitmap": "concise"*

      },


Thanks,

Egor