addField method
Добавление ногого поля в объект Вызывается при инициализации
Implementation
void addField(NsgDataField field, {bool primaryKey = false, String? presentation}) {
var name = field.name;
assert(!fieldList.fields.containsKey(name));
fieldList.fields[name] = field;
if (primaryKey) {
assert(primaryKeyField == '');
primaryKeyField = name;
}
if (presentation != null) field.presentation = presentation;
}