* refactor: new type for JE - Exchange Gain or Loss
* refactor: skip few validations for Exchanage Gain Or Loss type Jour
* refactor: ERR create 2 journals for handling zero and non-zero compa
1. Additional check box accounts table to identify accounts with zero balance
2. Accounts with zero balance only in either of the 2 currencies will be handled on separate Journal
* refactor: skips few validation for allowing 0 debit/credit
* fix: General Ledger presentaion currency
* test: fix test case in general ledger
* test: fix failing test case in AR report
