private void accumulateImageData(List<byte[]> imageList, Data data) {
		if (!isImage(data)) {
			return;
		}

		try {
			imageList.add(data.getBytes());
		}
		catch (MemoryAccessException e) {
			// suppress (this shouldn't happen
		}
	}
Returns a list of byte[] containing image data.  The bytes will be either a png, a gif, or
a bitmap
Ghidra/Features/Base/src/main/java/ghidra/program/examiner/ProgramExaminer.java