fix(core): update

ts/interfaces/csvdescriptor.ts

@@ -0,0 +1,4 @@
+export interface ICsvDescriptor {
+  name: string;
+  contentString: string;
+}

ts/interfaces/index.ts

@@ -1,3 +1,4 @@
+export * from './csvdescriptor.js';
 export * from './paymentaccount.js';
 export * from './transaction.js';
 export * from './voucher.js';