Giving the option of setting the autoStart for the "from*" functions

[constraintAutomaton]

Hi everyone,

I wonder if it would fit the library's design to give functions like fromArray the option to set the autoStart to a user-defined value. If this is the case, I can make a PR for it.

[jeswr]

The main reason not to would be due to the planned breaking changes around / removal of autostart discussed in #25, but given that they have been sitting there for such a long time (my fault), I think it is reasonable to add such options.

[constraintAutomaton]

Thanks for the reply! I will make a PR this week then.

[rubensworks]

Can't you just use the ArrayIterator constructor directly?

[constraintAutomaton]

I did that to fix my issue. However, I feel it should be an option with those functions because it changes the behavior quite a lot, and it can be unexpected that the iterator starts "without intervention". Of course, those functions are pretty simple, so building the iterator by oneself is not difficult. So, maybe it is unnecessary, but I think we can argue that those functions as a whole might not be necessary.