Can add proofs to measurment ont measurment side. Fixes...

Can add proofs to measurment ont measurment side. Fixes #994

src/Domain/Registry/Model/Mesurement.php

@@ -441,6 +441,20 @@ class Mesurement implements LoggableSubject, CollectivityRelated
         $this->proofs = $proofs;
     }
 
+    public function addProof(Proof $proof): void
+    {
+        $this->proofs->add($proof);
+        $proof->addMesurement($this);
+    }
+
+    public function removeProof(Proof $proof): void
+    {
+        if ($this->proofs->count() && $this->proofs->contains($proof)) {
+            $this->proofs->removeElement($proof);
+        }
+        $proof->removeMesurement($this);
+    }
+
     public function getAnswerSurveys(): ?iterable
     {
         return $this->answerSurveys;