fix: indicator, circular mode, binding updates

[jcassidyav]

This PR attempts to fix:

• Circular mode, on IOS and Android. #23 #5
• Indicator on ( #32 )
• Updating correctly when the bound data is updated in android and IOS.

[lekhmanrus]

Hi @farfromrefug, could this be merged and released, please?

[farfromrefug]

Nice @jcassidyav I ll trust you on this one as I don't use the indicator

[vallemar]

@jcassidyav WOW, this is great! I spent a while trying to solve circular mode without using indicators!

[jcassidyav]

@farfromrefug Thanks for merging! ( I've been out of action for a couple of weeks hence the tardy response)