chore: Add customFields property to Identities schema

Author: tacxou

src/management/identities/_schemas/identities.schema.ts

@@ -7,6 +7,7 @@ import { IdentityState } from '../_enums/states.enum';
 import { AdditionalFieldsPart, AdditionalFieldsPartSchema } from './_parts/additionalFields.part.schema';
 import { InitStatesEnum } from '~/management/identities/_enums/init-state.enum';
 import { InitInfoPart, InitInfoPartSchema } from '~/management/identities/_schemas/_parts/init-info.part.schema';
+import { MixedValue } from '~/_common/types/mixed-value.type';
 
 export type IdentitiesDocument = Identities & Document;
 
@@ -35,6 +36,11 @@ export class Identities extends AbstractSchema {
 
   @Prop({ type: InitInfoPartSchema, default: {} })
   public initInfo: InitInfoPart;
+
+  @Prop({
+    type: Object,
+  })
+  public customFields?: { [key: string]: MixedValue }
 }
 
 export const IdentitiesSchema = SchemaFactory.createForClass(Identities);