FeatureRequest: `ToBool` add `int*` support

[hxzhao527]

cast/caste.go

Lines 81 to 99 in 8807572

	func ToBoolE(i interface{}) (bool, error) {
	i = indirect(i)
	switch b := i.(type) {
	case bool:
	return b, nil
	case nil:
	return false, nil
	case int:
	if i.(int) != 0 {
	return true, nil
	}
	return false, nil
	case string:
	return strconv.ParseBool(i.(string))
	default:
	return false, fmt.Errorf("unable to cast %#v of type %T to bool", i, i)
	}
	}

there only assert type int, no int8, int16, int32, int64, uint ...

could we add these type case?

[hungnl-dev]

I got the same problem today as I used redismock which only return value in type int64, and couldn't convert to bool. So I have made a PR for that, I will link the PR to this issue for further discuss and review on this matter:
#135