message: Implemented three more search bar props
diff: #import <react/renderer/components/navigation-react-native/RCTComponentViewHelpers.h>
  #import "RCTFabricComponentsPlugins.h"
  +#import <React/RCTConversions.h>
  #import <React/RCTI18nUtil.h>
  #import <React/UIView+React.h>
  @@ -65,6 +66,11 @@ using namespace facebook::react;
  NSString *placeholder = [[NSString alloc] initWithUTF8String: newViewProps.placeholder.c_str()];
  if (self.searchController.searchBar.placeholder != placeholder)
  [self.searchController.searchBar setPlaceholder:placeholder];
  + [self.searchController setObscuresBackgroundDuringPresentation:newViewProps.obscureBackground];
  + [self.searchController setHidesNavigationBarDuringPresentation:newViewProps.hideNavigationBar];
  + if (@available(iOS 13.0, *)) {
  + [self.searchController.searchBar.searchTextField setBackgroundColor:RCTUIColorFromSharedColor(newViewProps.barTintColor)];
  + }
  [super updateProps:props oldProps:oldProps];
  }
  