fix: load base64 image on android

[alexisrougnant]

fix #230 #231

Issue

Passing a base64 image as source does not work on Android

Marker.markImage({
  backgroundImage: {
    src: require('./images/test.jpg'),
    scale: 1,
  },
  watermarkImages: [{
    src: waterMarkImageBase64String,
    position: {
      position: Position.topLeft,
    },
  }],
})

The following error throws on native side:

isCoilImg: true
start to load image: data:image/png;base64,...
Failed to load image: data:image/png;base64,...

Actually coil does not seem to support base64 image: coil-kt/coil#2580

Fix

• make MarkerImageLoader loadImages handle base64 strings (and before coil images)