DMS-1825 : Get particular approver group details  

URL : /api/DocumentApproval/getApproverGroupDetails
This API will fetch approver group details based on ID of approver group passed through query string parameter and returns details like group name, list of approvers and their expiry date. 

INPUT :  approver group's ID.

Sample Responces : 
Input : /api/DocumentApproval/getApproverGroupDetails?groupID=1
Output:
{
    "groupId": 1,
    "groupName": "Offer Letter",
    "groupPersonDetails": [
        {
            "email": "test1@careerbuilder.com",
            "communicationID": 0,
            "approverUserID": 0,
            "isMandatory": false,
            "validDaysForApproval": 0,
            "expiryDate": "2019-09-11T10:22:53"
        },
        {
            "email": "test2@careerbuilder.com",
            "communicationID": 0,
            "approverUserID": 0,
            "isMandatory": false,
            "validDaysForApproval": 0,
            "expiryDate": "2019-09-11T10:22:53"
        },
        {
            "email": "test3@careerbuilder.com",
            "communicationID": 0,
            "approverUserID": 0,
            "isMandatory": false,
            "validDaysForApproval": 0,
            "expiryDate": "2019-09-11T10:22:53"
        }
    ],
    "error": null,
    "success": "True"
}

Impact/Changes required :
1 Add method to Controller
2 Add routine in business logic
3 Add validation for group ID
4 Unit test case writing
 
ETA : 20 hours approx including testing & code review.