Add property for indicator border width and color

[hsin919]

An example above is also added to storyboard. It's made by new properties `indicatorBorderWidth` and `indicatorBorderColor`

[davidtperk]

+1

[gmarm]

Apologies for my late response, I didn't have much time lately.

Why is a new UIView needed for this? Why not simply set the IndicatorView's layer border properties?

[hsin919]

hi @gmarm Thanks for your feedback. The new UIView you mentioned is the borderView which is made for the other segments with different border color than the indicator one. For example we can set the indicator border to yellow and other segment's border to red with borderView's help as below.

Please feel free to change the variable name if you think it's not easy to understand. Thanks

[hsin919]

Hi I just update the master to resolve the conflict. FYI.

[TheinHtikeAung]

Thanks for adding the border. Keep it up

[gmarm]

The functionality has been added with a simpler implementation with #44.

I'll be closing this.