Create an Angular directive for displaying batch status

batch status is displayed with color and glyphicon depending on its value. Currently they are conditions to handle that in stepexecution.html and details.html, which are kind of repetitive. Need to create an Angular directive to encapsulate the batch status rendering.

this directive (batchStatus) can reside and be registered in the common module in common/index.js, and be shared in details and stepexecution views. The templateUrl can point to template/directive/batch-status.html