UBERF-7543: Add low level groupBy api and improve security space lookup (#6126)

Signed-off-by: Andrey Sobolev <haiodo@gmail.com>

server/server-storage/src/blobStorage.ts

@@ -53,6 +53,10 @@ class StorageBlobAdapter implements DbAdapter {
     return await this.blobAdapter.findAll(ctx, _class, query, options)
   }
 
+  async groupBy<T>(ctx: MeasureContext, domain: Domain, field: string): Promise<Set<T>> {
+    return await this.blobAdapter.groupBy(ctx, domain, field)
+  }
+
   async tx (ctx: MeasureContext, ...tx: Tx[]): Promise<TxResult[]> {
     throw new PlatformError(unknownError('Direct Blob operations are not possible'))
   }