Order Conditions not working

Hi,

It seems there's a problem with InitOrderCondition, the condition is not being passed upon OrderCondition, so the value is always 0. I tried initializing it with a TimeCondition and a margin condition, but this always crashes the ib client. I also tried to assert it to time condition, but both the asserted and original OrderConditioner doesn't seem to be carrying conType forward and since this variable isn't exported, it's not possible to set it from an outside package.

I did a workaround and created a factory function to solve my problem, but of course, this is not optimal.

```
func NewTimeCondition(time string, isMore bool, isConj bool) TimeCondition {
oc := OrderCondition{
conditionType: 3,
IsConjunctionConnection: isConj,
}
tc := TimeCondition{
OperatorCondition: OperatorCondition{oc, isMore},
Time: time,
}
return tc
}
```

I'm using golang 1.17/MacOS 12.0.1