chore: export register function for tokens

TICKET: COIN-5280

Author: MohammedRyaan786

modules/abstract-cosmos/src/index.ts

@@ -1,3 +1,4 @@
 export * from './lib';
+export * from './register';
 export { CosmosCoin } from './cosmosCoin';
 export { CosmosToken } from './cosmosToken';