add stamp / no-stamp to export-by-email and export-by-ftp (#4437)

add default (disabled) stamp settings on new collections
add "record_edit" & "image_tools" to conf / export-stamp-choice privilege

lib/Alchemy/Phrasea/Model/Entities/FtpExportElement.php

@@ -95,6 +95,11 @@ class FtpExportElement
      */
     private $updated;
 
+    /**
+     * @ORM\Column(type="boolean", options={"default" = 0})
+     */
+    private $toStamp = false;
+
     /**
      * Get id
      *
@@ -368,4 +373,20 @@ class FtpExportElement
     {
         return $this->export;
     }
+
+    /**
+     * @return bool
+     */
+    public function isToStamp(): bool
+    {
+        return $this->toStamp;
+    }
+
+    /**
+     * @param bool $toStamp
+     */
+    public function setToStamp(bool $toStamp)
+    {
+        $this->toStamp = $toStamp;
+    }
 }