drawUnderStatusBar changes

* Resolve default value through appStyle
* breaking - titleBarTopPadding is now dp instead of pixels

android/app/src/main/java/com/reactnativenavigation/params/parsers/StyleParamsParser.java

         result.topTabTextFontFamily = new StyleParams.Font();
         result.titleBarHeight = -1;
         result.screenAnimationType = "slide-up";
+        result.drawUnderStatusBar = false;
         return result;
     }
 

android/app/src/main/java/com/reactnativenavigation/views/TitleBar.java

     }
 
     private void setTopPadding(final StyleParams params) {
-        setPadding(0, params.titleBarTopPadding, 0,0);
+        setPadding(0, (int) ViewUtils.convertDpToPixel(params.titleBarTopPadding), 0,0);
     }
 
     private void colorOverflowButton(StyleParams params) {

src/deprecated/platformSpecificDeprecated.android.js

     statusBarColor: processColor(originalStyleObject.statusBarColor),
     statusBarHidden: originalStyleObject.statusBarHidden,
     statusBarTextColorScheme: originalStyleObject.statusBarTextColorScheme,
-    drawUnderStatusBar: originalStyleObject.drawUnderStatusBar || false,
+    drawUnderStatusBar: originalStyleObject.drawUnderStatusBar,
     topBarReactView: originalStyleObject.navBarCustomView,
     topBarReactViewAlignment: originalStyleObject.navBarComponentAlignment,
     topBarReactViewInitialProps: originalStyleObject.navBarCustomViewInitialProps,