Merge pull request #1441 from input-output-hk/fix/export-txmetadata-m…

…odule

fix: export TxMetadata module from core package root

packages/core/src/index.ts

@@ -1,6 +1,7 @@
 export * as Asset from './Asset';
 export * as Cardano from './Cardano';
 export * as Serialization from './Serialization';
+export * as TxMetadata from './TxMetadata';
 export * from './Provider';
 export * from './util';
 export * from './errors';