Fix the issues reported by phpcs in the modules directory

 /**
- * Class CloudBlock.
+ * Class CloudBlock stores data from Blocks.
  */

A class short description must not start with Class followed by the class name.

 /**
- * Class CloudBlockBase.
+ * Base class for Cloud Block.
  */
 class CloudBlockBase implements CloudBlockInterface {

An article is missing before base class and cloud block.
block should probably be blocks.

   /**
    * Block view css.
    *
    * @var null
    */
-  protected $view_css = NULL;
+  protected $viewCss = NULL;

NULL is the default value, not the property type.

 /**
- * Class CloudBlockManager.
+ * Class to Manage the CloudBlocks.
  */

Class short descriptions do not start with Class.
Only the first word in a sentence is spelled capitalized.
CloudBlocks should be cloud blocks.

Hi Updated patch the patch with reference to #8. Please review.

Thanks!