Consent Status in GET consent search is not accurate

[anjuchamantha]

How to reproduce:

1. Create a consent with a validityTime.
2. After the validity time (after few minutes), search the consents which are active using GET /consents?consentStatuses=ACTIVE
3. The newly created consent which should not be active also returned with the status as ACTIVE

Note: The status will be changed to EXPIRED state when that consent is validated with /consents/validate request

[hasithakn]

Related issue: #19