Add the uninscription request submission

frontend/src/rest/requests.js

@@ -18,4 +18,8 @@ export async function getAllExemptionsRequest(){
 
 export async function editEquivalenceState(id, newstate){
     return restPatch("/request/registerequiv/"+id+"/"+newstate)
+}
+
+export async function addUninscReq(userId, reason){
+    return restPost("/uninscriptionreq", {"userId" : userId, "reason" : reason})
 }