message: Set semanticAttribute based on isRTL flag
  Not sure if this is necessary - tried in iOS 12 and seemed to be needed, but then edited out and it still worked?! Anyway, including for completeness and sure it's needed
diff: #import "NVTabBarItemView.h"
  #import "NVTabBarPagerView.h"
  +#import <React/RCTI18nUtil.h>
  +
  @implementation NVSegmentedTabView
  - (id)init
  {
  if (self = [super init]) {
  [self addTarget:self action:@selector(tabPressed) forControlEvents:UIControlEventValueChanged];
  + self.semanticContentAttribute = ![[RCTI18nUtil sharedInstance] isRTL] ? UISemanticContentAttributeForceLeftToRight : UISemanticContentAttributeForceRightToLeft;
  }
  return self;
  }
  