Applicants can be registered with mobileNo or email only

[Arshia Gh]

As the title says, applicants can be registered through the back-end API without providing
email and mobileNo fields.
This is acceptable if neither of the fields are provided.
However as it can be seen from the below example they can also be registered while providing one of the mentioned fields.

Input

fullname: Arshia Gh
IDno: 101010101768
householdIncome: 100
address: Jalan Test
email: [e-mail]

Expected Output

{
	"error": {
		"message": "some fields did not meet the validation requirements",
		"name": "ValidationError",
		"fields": {
			"mobileNo": "mobileNo is required",
		}
	},
	"code": 400
}

Actual Output

{
	"result": {
		"fullname": "Arshia Gh",
		"IDno": "101010101768",
		"householdIncome": 100,
		"address": "Jalan Test",
		"email": "[e-mail]",
		"username": "AP000000000008",
		"userType": "APPLICANT",
		"orgId": 1000,
		"password": "kaxocufofepo"
	},
	"code": 200
}

[Arshia Gh]

fixed