message: fix balanceOf in contract
diff: @@ -383,7 +383,7 @@ contract NetEmissionsTokenNetwork is ERC1155, AccessControl {
  view
  returns (uint256, uint256)
  {
  - uint256 available = this.getBalance(account, tokenId);
  + uint256 available = super.balanceOf(account, tokenId);
  uint256 retired = this.getTokenRetiredAmount(tokenId);
  return (available, retired);
  }
  