message: feat(asset-registry): use common type
diff: import moment from 'moment';
  import { TransactionReceipt } from 'web3-core';
  -import { BlockchainDataModelEntity, Configuration } from '@energyweb/utils-general';
  +import { BlockchainDataModelEntity, Configuration, Timestamp } from '@energyweb/utils-general';
  import { AssetLogic } from '../wrappedContracts/AssetLogic';
  export enum UsageType {
  @@ -19,7 +19,7 @@ export interface IOnChainProperties extends BlockchainDataModelEntity.IOnChainPr
  }
  export interface IOffChainProperties {
  - operationalSince: number;
  + operationalSince: Timestamp;
  capacityWh: number;
  country: string;
  address: string;
  