Fix #1353: add memos support for multiple transaction types in getTransactions (#1397)

* fix(#1353): adds memos support for the following transaction types in `getTransactions`:

- AccountDelete
- OfferCreate
- OfferCancel
- CheckCancel
- CheckCash
- CheckCreate
- DepositPreauth
- SetFee
- PaymentChannelFund
- PaymentChannelClaim
- PaymentChannelCreate
- TicketCreate

test/api/getTransactions/index.ts

@@ -155,6 +155,7 @@ export default <TestSuite>{
     const response = await api.getTransactions(addresses.OTHER_ACCOUNT)
     assertResultMatch(response, RESPONSE_FIXTURES.one, 'getTransactions')
   }
+  
 }
 
 // This test relies on the binary (hex string) format, but computed fields like `date`