Rename Rueckmeldungscode::PAGINATION to ::AUFSETZPUNKT

It's a more general concept, simply meaning the continuation of a process on the server (whether it produces output as a series of pages or not).

This is technically a breaking change, but I suspect no real clients use this symbol directly in their application code.

Author: Philipp91

lib/Fhp/PaginateableAction.php

@@ -6,7 +6,6 @@
 use Fhp\Protocol\Message;
 use Fhp\Protocol\UnexpectedResponseException;
 use Fhp\Protocol\UPD;
-use Fhp\Segment\BaseSegment;
 use Fhp\Segment\HIRMS\Rueckmeldungscode;
 use Fhp\Segment\Paginateable;
 
@@ -79,7 +78,7 @@ public function hasMorePages(): bool
 
     public function processResponse(Message $response)
     {
-        if (($pagination = $response->findRueckmeldung(Rueckmeldungscode::PAGINATION)) !== null) {
+        if (($pagination = $response->findRueckmeldung(Rueckmeldungscode::AUFSETZPUNKT)) !== null) {
             if (count($pagination->rueckmeldungsparameter) !== 1) {
                 throw new UnexpectedResponseException("Unexpected pagination request: $pagination");
             }

lib/Fhp/Segment/HIRMS/Rueckmeldungscode.php

@@ -77,7 +77,7 @@ public static function isError(int $code): bool
      * Tells the client that the response is incomplete and the request needs to be re-sent with the pagination token
      * ("Aufsetzpunkt") that is contained in the Rueckmeldung parameters.
      */
-    public const PAGINATION = 3040;
+    public const AUFSETZPUNKT = 3040;
 
     public const VOP_KEINE_NAMENSABWEICHUNG = 25;