[TIMOB-27532] iOS: Ti.Utils.base64encode(image).toString() Broken on iOS 9 and 10

Hello, Ti.Utils.base64encode(image).toString() is broken on iOS 9 and 10. This function returns [object TiBlob] when it should return the base64 encoded string. On iOS 11, 12, and 13 it works as expected. *Test Environment:* SDK version: 8.2.1.GA Appcelerator Command-Line Interface, version 7.1.1 iOS Device: iPhone 6 plus(12.4.1), iPod 5G (9.3.5) *Test Code:* index.xml

<Alloy>
	<Window class="container">
		<Label class="label" onClick="getImage">Get Image from Photos</Label>
		<Label id="base64Text" class="label" />
	</Window>
</Alloy>

index.js

var image = null;

function getImage() {
	Ti.Media.openPhotoGallery({
		success: function(event){
			image = event.media;

			var imageText = Ti.Utils.base64encode(image).toString();

			// Rendering thousands of characters is error prone so 
			// I trim the string for this proof of concept.
			if (imageText.length > 100) {
				imageText = imageText.substring(0, 100);
			}

		  	$.base64Text.text = imageText;
		},
		allowEditing: false,
		mediaTypes: [Ti.Media.MEDIA_TYPE_PHOTO]
	});
}
$.index.open();

You can check the attached project also. *Steps to reproduce the issue:* 1. Run the above code on iOS 9 or 10 2. Click on the "Get Image from Photos" label and it will choose an image from gallery. 3. You will get *"[object TiBlob]"* but it should be returned the base64 encoded string. Thanks