Returns list of all Friendship Request in database
create:
Create Friendship Request

read:
Lists all Friendship Requests in database
partial_update:

delete:
Delete Friendahip Requests from database

update:
Althers Friendsihp Request in database

GET /friendship_request/?format=api
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[]