#featur
  1、支持单张图片压缩
  2、支持多张图片批量压缩
  3、结合Rxjava2实现异步压缩，保证压缩顺序，结果回调到主线程
  
  #useage
  1、在Application中初始化
     EasyCompressor.init(getApplicationContext());
     
  2、直接使用
  
     //a.默认的压缩配置（压缩到1.5M以下，压缩后质量不低于65%）
     EasyCompressor.getInstance(null).compress("file://xxxxx.png", new CompressCallback() {
        @Override
        public void onSuccess(File compressedFile) {
            
        }

        @Override
        public void onFailed(Throwable throwable) {

        }
    });
       
      //批量压缩
      EasyCompressor.getInstance(null).batchCompress(files, new BatchCompressCallback() {
        @Override
        public void onSuccess(List<File> files) {
            
        }

        @Override
        public void onFailed(Throwable throwable) {

        }
    });


    
     //b.自定义压缩配置
     EasyCompressor.getInstance(new CompressOptions(1024*1024*10,false,50)).
            compress("file://xxxxx.jpg", new CompressCallback() {
                @Override
                public void onSuccess(File compressedFile) {
                    
                }

                @Override
                public void onFailed(Throwable throwable) {

                }
            });