add array to dotStyles propTypes

[yomybaby]

Is it a bugfix ?

• Yes

Is it a new feature ?

• No

Describe what you've done:

style can be array.

How to test it ?

set dotStyles using array

<Swiper 
  dotStyle={styles.scrollDotStyle}
  activeDotStyle={[styles.scrollDotStyle,{ backgroundColor: '#686868'}]}>

[hbarylskyi]

I see yellow warning message about activeDotStyles propTypes every time I open the app. Would be cool if this was merged