Support for vector drawables

[AKiniyalocts]

When creating a WatermarkImage with a vector drawable resource, generating the final watermark via:

WatermarkBuilder.create(context, backgroundBitmap) .loadWatermarkImage(waterMarkImage) .getWatermark()

throws a NullPointerException

Here is the full stacktrace:

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
2020-11-03 10:50:39.603 2574-2754/com.buckdown.android W/System.err: at com.watermark.androidwm_light.utils.BitmapUtils.resizeBitmap(BitmapUtils.java:124)
2020-11-03 10:50:39.603 2574-2754/com.buckdown.android W/System.err: at com.watermark.androidwm_light.Watermark.createWatermarkImage(Watermark.java:112)
2020-11-03 10:50:39.603 2574-2754/com.buckdown.android W/System.err: at com.watermark.androidwm_light.Watermark.(Watermark.java:75)