refactor: extract inline type definitions

src/core/base/Place.ts

@@ -12,8 +12,8 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-import {Point, Polygon} from 'geojson';
 import {SCThing} from '../Thing';
+import {SCGeoInformation} from '../types/GeoInformation';
 import {SCPostalAddress} from '../types/PostalAddress';
 
 /**
@@ -26,15 +26,12 @@ export interface SCPlaceWithoutReferences extends SCThing {
   address?: SCPostalAddress;
 
   /**
-   * Position/shape of the place
+   * Positional information of the place
    *
    * !!! BEWARE !!!
    * Can not be a GeometryCollection because ElasticSearch does not allow distance filtering/sorting on other types
    */
-  geo: {
-    point: Point,
-    polygon?: Polygon,
-  };
+  geo: SCGeoInformation;
 
   /**
    * Opening hours of the place

src/core/base/ThingWithCategories.ts

@@ -14,6 +14,7 @@
  */
 import {SCThing, SCThingTranslatableProperties} from '../Thing';
 import {SCTranslations} from '../types/i18n';
+import {SCMap} from '../types/Map';
 
 /**
  * A thing without references with categories
@@ -33,13 +34,8 @@ export interface SCThingWithCategoriesWithoutReferences<T,
    * Use this to explicitly override general opening hours brought in scope by openingHoursSpecification or openingHours
    *
    * A map from categories to their specific values.
-   *
-   * !!! BEWARE !!!
-   * TypeScript does not allow generics as index signatures. The properties of the map should exist in `T`.
    */
-  categorySpecificValues?: {
-    [s: string]: U,
-  };
+  categorySpecificValues?: SCMap<U>;
 
   /**
    * Translated fields of a thing with categories