Support for adding basemap in mapview via configuration

[kyungtaak]

Is your feature request related to a problem? Please describe.
Currently, we only support OpenStreetMap as a base map within MapView functionality.
Some users want to select the base map they need through configuration.

Describe the solution you'd like
We can set information about the base map in the application configuration and select it from the MapView widget.

Describe alternatives you've considered
(N/A)

Additional context
Properties related basemap (application.yaml)

polaris
    widget:
        mapView:
          defaultBaseMap: Light  # Default base map name
          overrideBaseMap: false # Whether to use only the custom base map
          baseMaps:              # info. of custom base map
            -
              name: map1
              url: https://map.test.com/1
            -
              name: map2
              url: https://map.test.com/2

[kyungtaak]

@eltriny 현재 사용하고 있는 basemap 이름과 url 정보를 알려주실수 있나요?

[eltriny]

@kyungtaak
Light (Metatron Default): http://{1-4}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png
Dark: http://{1-4}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png
Colored: OpenLayers 기본제공

[kyungtaak]

@dave-taeho @eltriny basemap 관련 설정 정보입니다. mapView 위젯 로드시 호출이 필요합니다. (f#1064-adding_basemap_in_mapview)

• API : (GET) /api/widgets/properties/mapview
• Response

{
    "defaultBaseMap": "Light",   // 기본 BaseMap 이름
    "overrideBaseMap": false,    // true 인경우 embed 된 basemap 을 무시하고 baseMaps 의 항목으로 대체
    "baseMaps": [                        // Custom Base Map 목록
        {
            "name": "mapmap",
            "url": "https://map.test.com/....."
        }
    ]
}